Author Archives: EP

China Tissue Folding Industry Multi-Stage Centrifugal Vacuum Pump (MC150) manufacturer

Product Description

MC series Multi-stage Centrifugal Blower’technology is introduced from USA of most advanced all over the word with highefficiency,similar to Lamson, holfman, Continental.
Multiple patent technologies are adopted that is obviously better than other Chinese product in lower noise level, lowervibration and higher efficiency.

Features:
Lower noise level, lowervibration and higher efficiency.
Air cooling.

Technical Data:
Vacuum degree:-15~ -65kPa (G),
Flow capacity:30~1000m3/min.

Reference List in Paper-making Industry
1. Heng’an International Group Limited

2.ZheJiang OK Science and Technology Co.,Ltd

 

US $1,000-2,000
/ Piece
|
1 Piece

(Min. Order)

###

Mining Blower: Centrifugal
Transport Package: Export Wooden Packing
Specification: Centrifugal Blower
Trademark: Zhanggu
Origin: China

###

Customization:
US $1,000-2,000
/ Piece
|
1 Piece

(Min. Order)

###

Mining Blower: Centrifugal
Transport Package: Export Wooden Packing
Specification: Centrifugal Blower
Trademark: Zhanggu
Origin: China

###

Customization:

How to check the vacuum pump

A vacuum pump is a machine that draws gas molecules from a volume and maintains a partial vacuum. Its main job is to create a relative vacuum within the stated capabilities. If your vacuum pump isn’t working properly, it may need service. Read on to learn more about the types of vacuum pumps and how to check them.
Vacuum Pump

Principle of industrial vacuum pump

Industrial vacuum pumps are used in industrial processes that require vacuum. These pumps are designed to generate, improve and maintain vacuum. Learn about the different types of industrial vacuum technology. You can start by reading about the most common types of industrial vacuum pumps. These pumps can be used in a variety of industrial processes from cleaning to manufacturing.
Regardless of the technology used to manufacture these pumps, the basic principles behind their operation are the same. The speed and mass flow of the pump will determine its capacity and suitability. A faster flow rate will minimize the time it takes for the machine to empty. Another important factor to consider is the type of vacuum you need.
A liquid ring vacuum pump is an industrial pump that uses a ring of liquid to form a seal. This type of pump is best suited for applications with high vapor loads and high liquid carry-over. Liquid ring vacuum pumps can be divided into two categories: liquid ring vacuum pumps and scroll vacuum pumps.
Industrial vacuum pumps work by removing gas molecules from a chamber. The partial vacuum created allows material to flow through the void. As more molecules are removed, the pressure in the chamber decreases, releasing energy that can be used for a variety of different purposes.
The most common use of industrial vacuum pumps is for electric lights. In these lamps, a vacuum pump removes the gas, causing the bulb to light up. Energy from the vacuum is also used in aircraft to power instruments. In addition to powering industrial vacuum cleaners, they are used in a variety of other environments.
High-performance industrial vacuum systems require specific materials that can withstand extreme pressure. This means that the materials used in these systems need to be properly checked. They must also be free of organic debris and other contaminants before they can be safely placed in the chamber.

Types of vacuum pumps

There are various types of vacuum pumps. Which one to choose should depend on the purpose of the pump and the degree of vacuum that must be achieved. It is mainly divided into three categories: rough vacuum or low vacuum, high vacuum and ultra-high vacuum. They all have varying degrees of scarcity. The higher the pressure, the fewer molecules per cubic centimeter. This in turn improves vacuum quality.
The vacuum pump is critical to the operation of the vacuum system. These devices are divided into three main categories according to their working pressure range. These pumps have different characteristics and technologies that make them ideal for specific applications. The choice of vacuum pump required for a particular application depends on how much vacuum you need, and how much power you are willing to spend.
Vacuum pumps are used in a variety of industrial and scientific processes. Their main function is to remove gas molecules from the sealed volume, leaving a partial vacuum. There are many different types of vacuum pumps, including rotary piston, liquid ring and scroll vacuum pumps. In addition, turbomolecular pumps are used.
Dry vacuum pumps are more expensive than wet vacuum pumps. Wet vacuum pumps use oil as their lubricating fluid. Different types of oils are used depending on the application. Some wet pumps have additional features, including contaminant filtration. However, wet systems have one major disadvantage: the contact between oil and fluid. To avoid this, oil separators are usually used.
There are several different types of vacuum pumps. The basic type is the positive displacement pump. It operates by expanding the chamber and removing gas molecules. The intake valve draws fluid into the chamber, while the exhaust valve opens when the chamber is at maximum expansion. This cycle repeats several times per second. Positive displacement pumps are often used in multistage vacuum systems.
Vacuum Pump

Maintenance of vacuum pump

Regular maintenance is very important to ensure the long-term effective use of the vacuum pump. One way to ensure proper pump performance is to change the oil regularly. Pump oil may be contaminated by vapor condensation. To avoid this problem, close the inlet valve for 20 to 30 minutes before applying vacuum. It is also important to install an inlet cold trap to protect the pump from corrosive vapors.
Another way to prolong the life of your vacuum pump is to periodically remove any solvent in it. This step reduces internal corrosion and prevents premature pump failure. During maintenance, be sure to disconnect the power supply to the vacuum pump. After cleaning, store it in a dry and safe place. The pump should also be disposed of in accordance with local regulations.
Vacuum pumps may require frequent oil changes, especially when used in wet chemistry. The standard rule is to change the oil after 3,000 hours of use, but some pumps require more frequent oil changes. It is also important to clean the oil regularly, as dirty or discolored oil can affect the performance of the pump.
Vacuum pumps are often equipped with on-site glass to allow the user to visually check the oil level. Clean oil will appear transparent, while dirty oil will appear darker. Frequent oil changes are essential, as oil changes can help spot various potential problems. Changes in vacuum pump performance or strange noises are also good indicators of a problem.
After an oil change, the vacuum pump should be cleaned thoroughly with a soft cloth and mild degreaser. Oil changes should take less than ten minutes, and they will extend the life of your equipment. Additionally, the outside of the pump should be wiped with a cloth or rag.
The pump must be properly vented to avoid internal corrosion. If possible, place the pump away from hot equipment or rooms. Overheating can reduce the viscosity of the oil and cause premature pump failure. In addition, it can lead to overwork of other expensive scientific equipment. Heat can also cause cracked rubber parts and oil leaks.
Vacuum Pump

Signs of damage to the vacuum pump

A bad vacuum pump can cause a variety of automotive problems, including poor fuel economy, difficult braking, undercarriage oil leaks, and faulty air conditioning. If any of these problems occur, call a mechanic to check your vehicle’s vacuum pump. You can also check the air conditioner and brake pedal to see if they are working properly.
A loud noise from the pump can also be a symptom of a malfunction. These noises are often caused by the aging and accumulated wear of specific components. If this is the case, the diaphragm, valve plate or seals may need to be replaced. However, if the noise is coming from bearings or other areas, more extensive repairs may be required. Additionally, dust and other contaminants can enter the pump chamber, which can degrade pump performance.
If the vacuum pump won’t start, it could be a blown fuse or a power or voltage problem. Other common causes are flow restrictions or improper installation at the entrance. Also, the vacuum pump may be damaged or the capacitors may be of poor quality. It’s not always easy to tell if a vacuum pump is leaking oil, but a greasy transmission can indicate a vacuum pump failure.
A leaking vacuum pump can also hiss when the car’s engine is running. If you hear it, check the hoses and connections to make sure there are no leaks. A vacuum leak may indicate a faulty vacuum pump, so you need to replace it as soon as possible.
Checking end pressure is easy, but a pressure gauge can also serve as a sign. You can also check for pump vibration by running a short procedure. Excessive vibration can be subtle, but it can greatly affect your process. If you notice excessive pump vibration, you should contact a professional immediately.
Poor pump performance can cause many problems for your company. A bad vacuum pump not only wastes material, it also damages your tools and reputation.

China Tissue Folding Industry Multi-Stage Centrifugal Vacuum Pump (MC150)     manufacturer China Tissue Folding Industry Multi-Stage Centrifugal Vacuum Pump (MC150)     manufacturer
editor by czh 2022-12-02

China Durr Single Stage Vapour Recovery Vacuum Pump for Fuel Sevince Station Use vacuum pump electric

Product Description

Product Description

The  Vapour Recovery Pumps are vacuum pumps with integrated flame arresters arranged on the inlet and outlet sides to suck off explosion – capable fuel vapour/air mixtures into vapour recovery device s of dispensing devices at filling stations.

Features and Benefits:
Ø  Protection System – To prevent a flame breakthrough in deflagrations or stable detonations of explosion – capable vapour/air mixtures of explosion group in the case of ignition on the dispensing valve and the following subsequent max. hose and pipe length: gas return hose with an internal diameter < 10mm in a coaxial hose <6mm, or optionally coaxial hose <6mm with an outer diameter <38mm, together with a subsequent ID 15pipe (G 1/2")<3mm.
Ø  The gas temperature in the outlet line must not exceed 95° C±5° C.
Ø  For faultless function is necessary to keep the product clean.
Ø  Selective of Single pump head or double pump head.
Ø  100% Factory Tested

Product performance

1,Strong suction ability,under 45L/min refueling speed,keep the vapor liquid ratio not lower than stand requirement.

2,The pump’s start-stop control taken from the electromagnetic vlvo controller,control circuit simple and reliable.

3Transmission shaft and motor are connected directly,diversion can be arbitrarily,no need to judge motor steering

4.Self-lubricating soft piston,low noisy,stand wear and tear.

5,Die-cast aluminum alloy housing,compact structure.

6,Rational construction ,good resistance to gasoline,nice appearance.

Technical Specifications
Resistance to Pressure 0.3 Mpa
Setting Pressure       ≤0.18Mpa
Max Flow rate 70L/m
Current <0.9A
Voltage 220V/380V
Frequency 50HZ
Moter Power  
380w
Motor Speed 2820r/min
Noise Sound  
<70dB
Temperature ‘-25° C to 55° C
Net Weight 12.80KG(Single), 14.95KG (Double)

Packaging & Shipping

 

Company Profile

ECO Scince and technology Co.,Ltd,was established in Dec.of 1998,we are professional manufacturer for fuel dispenser with 70 employees,and 15 technicians.We own various production equipment and detection equipment 45 sets.Machining center ,digital controlled lathe,straightener,polisher advanced equipment 20sets.Our machining workshop,assembly shop ,key components are all achieving self-sufficiency.
      High-tech,High level technological innovation,has provided a great conditions for develop new products. As far as now we have developed the overflow valve,breakaway valve,dull gas-oil recovery vacuum pump,NP oil-gas recovery vacuum pump,tubing flattener for oil fuel dispenser. We are supplier for zhengxing,yongbang,sanjin,jialijia,famous brand main engine plants.
      We always put quality at the first consideration,as well as continuous innovation,start with the details,scientific management methods are our policy,our high quality products has win a high degree of trust among our customers.We were rated as “outstanding supplier”by our customer.And were specified as there export products supplier.
       Quality first,customer first are our principle,we will keep forging ahead,expand a wider market.
 

1- Could you develop our own design?        
   Yes
2- Are you factory?                                                                
Yes
3- Can we visit your factory or show your facotry via internet?                                            
  Yes
4- Could you send the sample for testing?                  
  Yes
5- Could you offer door to door service?                        
 Yes

US $10
/ Piece
|
1 Piece

(Min. Order)

###

After-sales Service: 24month
Warranty: 12month
Oil or Not: Oil Free
Vacuum Degree: Vacuum
Working Conditions: Dry
Motor Speed: 2820r/Min

###

Samples:
US$ 10/Piece
1 Piece(Min.Order)

|
Request Sample

###

Customization:

###

Technical Specifications
Resistance to Pressure 0.3 Mpa
Setting Pressure       ≤0.18Mpa
Max Flow rate 70L/m
Current <0.9A
Voltage 220V/380V
Frequency 50HZ
Moter Power  
380w
Motor Speed 2820r/min
Noise Sound  
<70dB
Temperature ‘-25° C to 55° C
Net Weight 12.80KG(Single), 14.95KG (Double)
US $10
/ Piece
|
1 Piece

(Min. Order)

###

After-sales Service: 24month
Warranty: 12month
Oil or Not: Oil Free
Vacuum Degree: Vacuum
Working Conditions: Dry
Motor Speed: 2820r/Min

###

Samples:
US$ 10/Piece
1 Piece(Min.Order)

|
Request Sample

###

Customization:

###

Technical Specifications
Resistance to Pressure 0.3 Mpa
Setting Pressure       ≤0.18Mpa
Max Flow rate 70L/m
Current <0.9A
Voltage 220V/380V
Frequency 50HZ
Moter Power  
380w
Motor Speed 2820r/min
Noise Sound  
<70dB
Temperature ‘-25° C to 55° C
Net Weight 12.80KG(Single), 14.95KG (Double)

Types of vacuum pumps

A vacuum pump is a device that draws gas molecules from a sealed volume and maintains a partial vacuum. Its job is to create a vacuum in a volume, usually one of several. There are several types of vacuum pumps, such as root pumps, diaphragm pumps, rotary piston pumps, and self-priming centrifugal pumps.

The diaphragm pump is a dry positive displacement vacuum pump

Diaphragm pumps are a versatile type of vacuum pump. They can be installed in a variety of scenarios including container emptying, positive suction, and simultaneous fluid mixing. Their performance depends on the stiffness and durability of the diaphragm, which in turn depends on the material.
They have good performance when running in dry mode. Diaphragm pumps work very similarly to the human heart, which is why they are often used to create artificial hearts. In addition, the diaphragm pump is self-priming and has high efficiency. They are also capable of handling the most viscous liquids and are used in almost all industries.
However, this type of pump has several disadvantages. One of them is that they are difficult to restart after a power outage. Another disadvantage is that they can generate a lot of heat. Fortunately, this heat is carried away by airflow. However, this heat builds up in the multistage pump. If this happens, the diaphragm or motor may be damaged. Diaphragm pumps operating in two or more stages should be fitted with solenoid valves to maintain vacuum stability.
Diaphragm pumps are a good choice for drying processes where hygiene is important. These pumps have check valves and rubber or Teflon diaphragms. Diaphragm pumps are also ideal for high viscosity applications where shear sensitivity is important.
Vacuum Pump

Roots pumps are dry method centrifugal pumps

Roots pumps use a vane rotor pump with two counter-rotating vanes that move in opposite directions to move the gas. They are often the first choice for high-throughput process applications. Depending on the size and number of blades, they can withstand up to 10 Torr.
Centrifugal pumps have several advantages, including the ability to handle corrosive fluids and high temperatures. However, when choosing a pump, it is essential to choose a reputable manufacturer. These companies will be able to advise you on the best pump design for your needs and provide excellent after-sales support. Roots pumps can be used in a wide range of industrial applications including chemical, food, and biotechnology.
The Roots pump is a dry centrifugal pump whose geometry enables it to achieve high compression ratios. The screw rotors are synchronized by a set of timing gears that allow gas to pass in both directions and create a compressed state in the chamber. The pre-compressed gas is discharged through a pressure connection and cooled with water. Some pumps are also able to accept additional cooling gas, but this should be done with caution.
The size of the impeller plays an important role in determining the pump head. The impeller diameter determines how high the pump can lift the liquid. Impeller speed also affects the head. Since the head is proportional to the specific gravity of the liquid, the available suction pressure will be proportional to the density of the liquid. The density of water is about 1.2 kg/m3, and the suction pressure of the centrifugal pump is not enough to lift the water.

The rotary vane pump is a self-priming centrifugal pump

A rotary vane pump is a centrifugal pump with a circular pump head and a cycloid cam that supports the rotor. The rotor is close to the cam wall, and two side plates seal the rotor. Vanes in vane pumps are installed in these cavities, and the rotor rotates at high speed, pushing fluid in and out of the pump. The pump offers several advantages, including a reversible design and the ability to handle a wide variety of clean fluids.
Agknx Pumps manufactures a wide range of vane pumps that combine high performance, low cost, and easy maintenance. These pumps handle medium to high viscosity liquids up to 500 degrees Fahrenheit and 200,000 SSU.
The suction side of the rotary vane pump has a discharge port, and the valve prevents the backflow of the discharge air. When the maximum pressure is reached, the outlet valve closes to prevent the backflow of exhaust gas. The mechanical separation step separates the oil from the gas in the pump circuit and returns the remaining oil particles to the sump. The float valve then reintroduces these oil particles into the oil circuit of the pump. The gas produced is almost oil-free and can be blown out of a pipe or hose.
Rotary vane pumps are self-priming positive displacement pumps commonly used in hydraulic, aeration, and vacuum systems. Unlike gear pumps, rotary vane pumps can maintain high-pressure levels while using relatively low suction pressures. The pump is also very effective when pumping viscous or high-viscosity liquids.
Vacuum Pump

Rotary piston pumps are dry method positive displacement pumps

Rotary piston pumps are dry positive displacement pumps designed to deliver high-viscosity fluids. They are capable of pumping a variety of liquids and can run dry without damaging the liquid. Rotary piston pumps are available in a variety of designs. Some are single shafts, some are two shafts and four bearings.
Positive displacement pumps operate slower than centrifugal pumps. This feature makes the positive displacement pump more sensitive to wear. Piston and plunger reciprocating pumps are particularly prone to wear. For more demanding applications, progressive cavity, diaphragm or lobe pumps may be a better choice.
Positive displacement pumps are typically used to pump high-viscosity fluids. This is because the pump relies on a mechanical seal between the rotating elements and the pump casing. As a result, when fluids have low viscosity, their performance is limited. Additionally, low viscosity fluids can cause valve slippage.
These pumps have a piston/plunger arrangement using stainless steel rotors. Piston/piston pumps have two cavities on the suction side. The fluid then flows from one chamber to the other through a helical motion. This results in very low shear and pulsation rates. The pump is usually installed in a cylindrical housing.

Rotary vane pump corrosion resistance

Rotary vane vacuum pumps are designed for use in a variety of industries. They feature plasma-treated corrosion-resistant parts and anti-suck-back valves to help reduce the number of corrosive vapors entering the pump. These pumps are commonly used in freeze dryers, vacuum ovens, and degassing processes. The high flow rates they provide in their working vacuum allow them to speed up processes and reduce the time it takes to run them. Plus, they have energy-efficient motors and silent volume. <br/While rotary vane vacuum pumps are relatively corrosion resistant, they should not be used for aggressive chemicals. For these chemicals, the most suitable pump is the chemical mixing pump, which combines two types of pumps to improve corrosion resistance. If the application requires a more powerful pump, a progressive cavity pump (eg VACUU*PURE 10C) is suitable.
Oil seals used in rotary vane pumps are important to pump performance. The oil seal prevents corrosion of the aluminum parts of the rotary vane pump and prolongs the service life. Most rotary vane vacuum pumps have a standard set of components, although each component may have different oil seals.
Rotary vane vacuum pumps are the most common type of positive displacement pump. They provide quiet operation and long service life. They are also reliable and inexpensive and can be used in a variety of applications.
Vacuum Pump

Roots pumps are primarily used as a vacuum booster

Root vacuum pumps are mainly used as vacuum boosters in industrial applications. They need a thorough understanding of operating principles and proper maintenance to function properly. This course is an introduction to Roots vacuum pumps, covering topics such as pump principles, multi-stage pumps, temperature effects, gas cooling, and maintenance.
Roots pumps have many advantages, including compact and quiet operation. They do not generate particles and have a long service life. They also don’t require oil and have a small footprint. However, Roots pumps have several disadvantages, including relatively high maintenance costs and low pumping speeds near atmospheric pressure.
Root vacuum pumps are often used with rotary vane vacuum pumps. They work on the same principle, the air enters a conveying unit formed by two rolling pistons in the housing. The piston heads are separated from each other, and the air passes through the unit without being reduced until it is discharged. When the air in the next unit reaches a higher absolute pressure, it is expelled from the last unit.
Roots pumps can be classified as sheathed or sealed. Roots pumps with sealed motors are suitable for pumping toxic gases. They have less clearance between the stator and motor rotor and have a sealed tank.

China Durr Single Stage Vapour Recovery Vacuum Pump for Fuel Sevince Station Use     vacuum pump electricChina Durr Single Stage Vapour Recovery Vacuum Pump for Fuel Sevince Station Use     vacuum pump electric
editor by czh 2022-12-02

China 5.5 Kw Double Stage Side Channel Ring Blower Vacuum Pump for Waste Water Treatment vacuum pump booster

Product Description

CE Approved High Pressure Side Channel Ring Blower 

Founded in 2004,  we are specialized in making air fluid equipments (compressors and vacuum pumps). With more than 10 years’ development, we have become a professional manufacturer who is mainly committed to producing side channel blowers plus other kinds of air fluid equipments (vacuum pumps and compressors), forming the complete structure merging with R&D, production, sales and services. We have become the leading manufacturer in the world in the industry of side channel blowers.

 Advantage:

  • CE UL approved, IP54, insulation Class F Vacuum Pump
  •  One year warranty time vacuum pump
  • Handles vacuum or pressure applications
  • Cooler running outboard bearing
  •  Increase service life-24*7 non-stop, 15000 hours running vacuum pump
  • Ideal alternative to standard rotary
  •  Oil Free vacuum pump
  • Compact light weight design-small vacuum pump
  • Competitive vacuum pump price
  •  Quality equal to siemens vacuum pump
  •  

Product parameter:

 

      2RB Series Three Phase Ring Blower  (CE mark)

Model No. Grade Frequency Rating power Rating Voltage Rating Current Max airflow Max vacuum Max pressure  Weight
2RB 820-H17 Single  50HZ 5.5KW 345-415△/600-720Y 13.3△/7.7Y  520m3/h  -240mbar  240mbar  83kgs 
60HZ 6.3KW 380-480△/660-720Y 13.3△/7.7Y 620m3/h  -170mbar  160mbar

 

More than 300 models in different working performance:

Application:

Our workshop:

Paskage and delivery:

Delivery time:
1. Stocks: 3days
2. Bulk production: 10-15days.

 

 

 

 

Material: Aluminum
Usage: Waste Water Treating
Flow Direction: Centrifugal
Pressure: High Pressure
Certification: RoHS, CE, CCC
Product Name: Side Channel Blower

###

Samples:
US$ 1000/Piece
1 Piece(Min.Order)

|
Request Sample

###

Customization:

###

      2RB Series Three Phase Ring Blower  (CE mark)

Model No. Grade Frequency Rating power Rating Voltage Rating Current Max airflow Max vacuum Max pressure  Weight
2RB 820-H17 Single  50HZ 5.5KW 345-415△/600-720Y 13.3△/7.7Y  520m3/h  -240mbar  240mbar  83kgs 
60HZ 6.3KW 380-480△/660-720Y 13.3△/7.7Y 620m3/h  -170mbar  160mbar
Material: Aluminum
Usage: Waste Water Treating
Flow Direction: Centrifugal
Pressure: High Pressure
Certification: RoHS, CE, CCC
Product Name: Side Channel Blower

###

Samples:
US$ 1000/Piece
1 Piece(Min.Order)

|
Request Sample

###

Customization:

###

      2RB Series Three Phase Ring Blower  (CE mark)

Model No. Grade Frequency Rating power Rating Voltage Rating Current Max airflow Max vacuum Max pressure  Weight
2RB 820-H17 Single  50HZ 5.5KW 345-415△/600-720Y 13.3△/7.7Y  520m3/h  -240mbar  240mbar  83kgs 
60HZ 6.3KW 380-480△/660-720Y 13.3△/7.7Y 620m3/h  -170mbar  160mbar

Types of vacuum pumps

A vacuum pump is a device that draws gas molecules from a sealed volume and maintains a partial vacuum. Its job is to create a vacuum in a volume, usually one of several. There are several types of vacuum pumps, such as root pumps, diaphragm pumps, rotary piston pumps, and self-priming centrifugal pumps.

The diaphragm pump is a dry positive displacement vacuum pump

Diaphragm pumps are a versatile type of vacuum pump. They can be installed in a variety of scenarios including container emptying, positive suction, and simultaneous fluid mixing. Their performance depends on the stiffness and durability of the diaphragm, which in turn depends on the material.
They have good performance when running in dry mode. Diaphragm pumps work very similarly to the human heart, which is why they are often used to create artificial hearts. In addition, the diaphragm pump is self-priming and has high efficiency. They are also capable of handling the most viscous liquids and are used in almost all industries.
However, this type of pump has several disadvantages. One of them is that they are difficult to restart after a power outage. Another disadvantage is that they can generate a lot of heat. Fortunately, this heat is carried away by airflow. However, this heat builds up in the multistage pump. If this happens, the diaphragm or motor may be damaged. Diaphragm pumps operating in two or more stages should be fitted with solenoid valves to maintain vacuum stability.
Diaphragm pumps are a good choice for drying processes where hygiene is important. These pumps have check valves and rubber or Teflon diaphragms. Diaphragm pumps are also ideal for high viscosity applications where shear sensitivity is important.
Vacuum Pump

Roots pumps are dry method centrifugal pumps

Roots pumps use a vane rotor pump with two counter-rotating vanes that move in opposite directions to move the gas. They are often the first choice for high-throughput process applications. Depending on the size and number of blades, they can withstand up to 10 Torr.
Centrifugal pumps have several advantages, including the ability to handle corrosive fluids and high temperatures. However, when choosing a pump, it is essential to choose a reputable manufacturer. These companies will be able to advise you on the best pump design for your needs and provide excellent after-sales support. Roots pumps can be used in a wide range of industrial applications including chemical, food, and biotechnology.
The Roots pump is a dry centrifugal pump whose geometry enables it to achieve high compression ratios. The screw rotors are synchronized by a set of timing gears that allow gas to pass in both directions and create a compressed state in the chamber. The pre-compressed gas is discharged through a pressure connection and cooled with water. Some pumps are also able to accept additional cooling gas, but this should be done with caution.
The size of the impeller plays an important role in determining the pump head. The impeller diameter determines how high the pump can lift the liquid. Impeller speed also affects the head. Since the head is proportional to the specific gravity of the liquid, the available suction pressure will be proportional to the density of the liquid. The density of water is about 1.2 kg/m3, and the suction pressure of the centrifugal pump is not enough to lift the water.

The rotary vane pump is a self-priming centrifugal pump

A rotary vane pump is a centrifugal pump with a circular pump head and a cycloid cam that supports the rotor. The rotor is close to the cam wall, and two side plates seal the rotor. Vanes in vane pumps are installed in these cavities, and the rotor rotates at high speed, pushing fluid in and out of the pump. The pump offers several advantages, including a reversible design and the ability to handle a wide variety of clean fluids.
Agknx Pumps manufactures a wide range of vane pumps that combine high performance, low cost, and easy maintenance. These pumps handle medium to high viscosity liquids up to 500 degrees Fahrenheit and 200,000 SSU.
The suction side of the rotary vane pump has a discharge port, and the valve prevents the backflow of the discharge air. When the maximum pressure is reached, the outlet valve closes to prevent the backflow of exhaust gas. The mechanical separation step separates the oil from the gas in the pump circuit and returns the remaining oil particles to the sump. The float valve then reintroduces these oil particles into the oil circuit of the pump. The gas produced is almost oil-free and can be blown out of a pipe or hose.
Rotary vane pumps are self-priming positive displacement pumps commonly used in hydraulic, aeration, and vacuum systems. Unlike gear pumps, rotary vane pumps can maintain high-pressure levels while using relatively low suction pressures. The pump is also very effective when pumping viscous or high-viscosity liquids.
Vacuum Pump

Rotary piston pumps are dry method positive displacement pumps

Rotary piston pumps are dry positive displacement pumps designed to deliver high-viscosity fluids. They are capable of pumping a variety of liquids and can run dry without damaging the liquid. Rotary piston pumps are available in a variety of designs. Some are single shafts, some are two shafts and four bearings.
Positive displacement pumps operate slower than centrifugal pumps. This feature makes the positive displacement pump more sensitive to wear. Piston and plunger reciprocating pumps are particularly prone to wear. For more demanding applications, progressive cavity, diaphragm or lobe pumps may be a better choice.
Positive displacement pumps are typically used to pump high-viscosity fluids. This is because the pump relies on a mechanical seal between the rotating elements and the pump casing. As a result, when fluids have low viscosity, their performance is limited. Additionally, low viscosity fluids can cause valve slippage.
These pumps have a piston/plunger arrangement using stainless steel rotors. Piston/piston pumps have two cavities on the suction side. The fluid then flows from one chamber to the other through a helical motion. This results in very low shear and pulsation rates. The pump is usually installed in a cylindrical housing.

Rotary vane pump corrosion resistance

Rotary vane vacuum pumps are designed for use in a variety of industries. They feature plasma-treated corrosion-resistant parts and anti-suck-back valves to help reduce the number of corrosive vapors entering the pump. These pumps are commonly used in freeze dryers, vacuum ovens, and degassing processes. The high flow rates they provide in their working vacuum allow them to speed up processes and reduce the time it takes to run them. Plus, they have energy-efficient motors and silent volume. <br/While rotary vane vacuum pumps are relatively corrosion resistant, they should not be used for aggressive chemicals. For these chemicals, the most suitable pump is the chemical mixing pump, which combines two types of pumps to improve corrosion resistance. If the application requires a more powerful pump, a progressive cavity pump (eg VACUU*PURE 10C) is suitable.
Oil seals used in rotary vane pumps are important to pump performance. The oil seal prevents corrosion of the aluminum parts of the rotary vane pump and prolongs the service life. Most rotary vane vacuum pumps have a standard set of components, although each component may have different oil seals.
Rotary vane vacuum pumps are the most common type of positive displacement pump. They provide quiet operation and long service life. They are also reliable and inexpensive and can be used in a variety of applications.
Vacuum Pump

Roots pumps are primarily used as a vacuum booster

Root vacuum pumps are mainly used as vacuum boosters in industrial applications. They need a thorough understanding of operating principles and proper maintenance to function properly. This course is an introduction to Roots vacuum pumps, covering topics such as pump principles, multi-stage pumps, temperature effects, gas cooling, and maintenance.
Roots pumps have many advantages, including compact and quiet operation. They do not generate particles and have a long service life. They also don’t require oil and have a small footprint. However, Roots pumps have several disadvantages, including relatively high maintenance costs and low pumping speeds near atmospheric pressure.
Root vacuum pumps are often used with rotary vane vacuum pumps. They work on the same principle, the air enters a conveying unit formed by two rolling pistons in the housing. The piston heads are separated from each other, and the air passes through the unit without being reduced until it is discharged. When the air in the next unit reaches a higher absolute pressure, it is expelled from the last unit.
Roots pumps can be classified as sheathed or sealed. Roots pumps with sealed motors are suitable for pumping toxic gases. They have less clearance between the stator and motor rotor and have a sealed tank.

China 5.5 Kw Double Stage Side Channel Ring Blower Vacuum Pump for Waste Water Treatment     vacuum pump booster	China 5.5 Kw Double Stage Side Channel Ring Blower Vacuum Pump for Waste Water Treatment     vacuum pump booster
editor by czh 2022-12-01

China Vacuum Pressure Gauge for H-825 Vacuum Pump vacuum pump adapter

Product Description

Manufacturer HangZhou CZPT Meter Co., Ltd  (Established in 1996)
Main Products

 common pressure gauge (from size 1” to size 6”), liquid filled gauge, tyre pressure gauge, refrigerant pressure gauge, all stainless steel pressure gauge, medical pressure gauge, temperature gauge, oxygen and acetylene regulator, bi-metal thermometer and etc

Our Advantage Completely production lines for all kinds of pressure gauge
Leader brand in China with best market reputation
Advanced technology and equipment
High quality, competitve price,100% under inspection, thoughful service
Certification CE, KS, ISO 9001, OHSAS 18001, SGS, etc
Capcity Monthly 300,000 pcs
OEM/ODM Welcomed
Price Terms FOB ZheJiang
Package Normally we use cartons, wooden box, prallet, and we follow customer’s need

FAQ:
1)The quality of the products
Our pressure gauges all are 100% under inspection, we also have passed ISO9001:2008 and KS certificated.
2)Price
We can provide our high quality products with reasonable price.
3) OEM services
In the past years, we have many OEM orders from very famous company in USA and European market.
4)Delivery
Our company provides in-time delivery,  and always satisfy customer’s need.
5)Service
Our company provide best after-sale service all the time , for our goal is a long trade cooperation term.
6)Reputation
Our factory have 10 years experiences and have already gaining the best reputation and response from the customers from all over the world.

 

To Be Negotiated 50 Pieces
(Min. Order)

###

Dial: 1.5"(40mm)
Case: 304ss
Lens: PC or Glass
Socket: 316ss
Mounting: Bottom, Back, Panel and Other Special Specificati
Connection: 1/8", 1/4", 1/2", 3/8", M10*1, M14*1.5, M20*1.5

###

Samples:
US$ 5.5/Piece
1 Piece(Min.Order)

|
Request Sample

###

Customization:

###

Manufacturer Yangzhou Huifeng Meter Co., Ltd  (Established in 1996)
Main Products

 common pressure gauge (from size 1” to size 6”), liquid filled gauge, tyre pressure gauge, refrigerant pressure gauge, all stainless steel pressure gauge, medical pressure gauge, temperature gauge, oxygen and acetylene regulator, bi-metal thermometer and etc

Our Advantage Completely production lines for all kinds of pressure gauge
Leader brand in China with best market reputation
Advanced technology and equipment
High quality, competitve price,100% under inspection, thoughful service
Certification CE, KS, ISO 9001, OHSAS 18001, SGS, etc
Capcity Monthly 300,000 pcs
OEM/ODM Welcomed
Price Terms FOB Shanghai
Package Normally we use cartons, wooden box, prallet, and we follow customer’s need
To Be Negotiated 50 Pieces
(Min. Order)

###

Dial: 1.5"(40mm)
Case: 304ss
Lens: PC or Glass
Socket: 316ss
Mounting: Bottom, Back, Panel and Other Special Specificati
Connection: 1/8", 1/4", 1/2", 3/8", M10*1, M14*1.5, M20*1.5

###

Samples:
US$ 5.5/Piece
1 Piece(Min.Order)

|
Request Sample

###

Customization:

###

Manufacturer Yangzhou Huifeng Meter Co., Ltd  (Established in 1996)
Main Products

 common pressure gauge (from size 1” to size 6”), liquid filled gauge, tyre pressure gauge, refrigerant pressure gauge, all stainless steel pressure gauge, medical pressure gauge, temperature gauge, oxygen and acetylene regulator, bi-metal thermometer and etc

Our Advantage Completely production lines for all kinds of pressure gauge
Leader brand in China with best market reputation
Advanced technology and equipment
High quality, competitve price,100% under inspection, thoughful service
Certification CE, KS, ISO 9001, OHSAS 18001, SGS, etc
Capcity Monthly 300,000 pcs
OEM/ODM Welcomed
Price Terms FOB Shanghai
Package Normally we use cartons, wooden box, prallet, and we follow customer’s need

Types of vacuum pumps

A vacuum pump is a device that draws gas molecules from a sealed volume and maintains a partial vacuum. Its job is to create a vacuum in a volume, usually one of several. There are several types of vacuum pumps, such as root pumps, diaphragm pumps, rotary piston pumps, and self-priming centrifugal pumps.

The diaphragm pump is a dry positive displacement vacuum pump

Diaphragm pumps are a versatile type of vacuum pump. They can be installed in a variety of scenarios including container emptying, positive suction, and simultaneous fluid mixing. Their performance depends on the stiffness and durability of the diaphragm, which in turn depends on the material.
They have good performance when running in dry mode. Diaphragm pumps work very similarly to the human heart, which is why they are often used to create artificial hearts. In addition, the diaphragm pump is self-priming and has high efficiency. They are also capable of handling the most viscous liquids and are used in almost all industries.
However, this type of pump has several disadvantages. One of them is that they are difficult to restart after a power outage. Another disadvantage is that they can generate a lot of heat. Fortunately, this heat is carried away by airflow. However, this heat builds up in the multistage pump. If this happens, the diaphragm or motor may be damaged. Diaphragm pumps operating in two or more stages should be fitted with solenoid valves to maintain vacuum stability.
Diaphragm pumps are a good choice for drying processes where hygiene is important. These pumps have check valves and rubber or Teflon diaphragms. Diaphragm pumps are also ideal for high viscosity applications where shear sensitivity is important.
Vacuum Pump

Roots pumps are dry method centrifugal pumps

Roots pumps use a vane rotor pump with two counter-rotating vanes that move in opposite directions to move the gas. They are often the first choice for high-throughput process applications. Depending on the size and number of blades, they can withstand up to 10 Torr.
Centrifugal pumps have several advantages, including the ability to handle corrosive fluids and high temperatures. However, when choosing a pump, it is essential to choose a reputable manufacturer. These companies will be able to advise you on the best pump design for your needs and provide excellent after-sales support. Roots pumps can be used in a wide range of industrial applications including chemical, food, and biotechnology.
The Roots pump is a dry centrifugal pump whose geometry enables it to achieve high compression ratios. The screw rotors are synchronized by a set of timing gears that allow gas to pass in both directions and create a compressed state in the chamber. The pre-compressed gas is discharged through a pressure connection and cooled with water. Some pumps are also able to accept additional cooling gas, but this should be done with caution.
The size of the impeller plays an important role in determining the pump head. The impeller diameter determines how high the pump can lift the liquid. Impeller speed also affects the head. Since the head is proportional to the specific gravity of the liquid, the available suction pressure will be proportional to the density of the liquid. The density of water is about 1.2 kg/m3, and the suction pressure of the centrifugal pump is not enough to lift the water.

The rotary vane pump is a self-priming centrifugal pump

A rotary vane pump is a centrifugal pump with a circular pump head and a cycloid cam that supports the rotor. The rotor is close to the cam wall, and two side plates seal the rotor. Vanes in vane pumps are installed in these cavities, and the rotor rotates at high speed, pushing fluid in and out of the pump. The pump offers several advantages, including a reversible design and the ability to handle a wide variety of clean fluids.
Agknx Pumps manufactures a wide range of vane pumps that combine high performance, low cost, and easy maintenance. These pumps handle medium to high viscosity liquids up to 500 degrees Fahrenheit and 200,000 SSU.
The suction side of the rotary vane pump has a discharge port, and the valve prevents the backflow of the discharge air. When the maximum pressure is reached, the outlet valve closes to prevent the backflow of exhaust gas. The mechanical separation step separates the oil from the gas in the pump circuit and returns the remaining oil particles to the sump. The float valve then reintroduces these oil particles into the oil circuit of the pump. The gas produced is almost oil-free and can be blown out of a pipe or hose.
Rotary vane pumps are self-priming positive displacement pumps commonly used in hydraulic, aeration, and vacuum systems. Unlike gear pumps, rotary vane pumps can maintain high-pressure levels while using relatively low suction pressures. The pump is also very effective when pumping viscous or high-viscosity liquids.
Vacuum Pump

Rotary piston pumps are dry method positive displacement pumps

Rotary piston pumps are dry positive displacement pumps designed to deliver high-viscosity fluids. They are capable of pumping a variety of liquids and can run dry without damaging the liquid. Rotary piston pumps are available in a variety of designs. Some are single shafts, some are two shafts and four bearings.
Positive displacement pumps operate slower than centrifugal pumps. This feature makes the positive displacement pump more sensitive to wear. Piston and plunger reciprocating pumps are particularly prone to wear. For more demanding applications, progressive cavity, diaphragm or lobe pumps may be a better choice.
Positive displacement pumps are typically used to pump high-viscosity fluids. This is because the pump relies on a mechanical seal between the rotating elements and the pump casing. As a result, when fluids have low viscosity, their performance is limited. Additionally, low viscosity fluids can cause valve slippage.
These pumps have a piston/plunger arrangement using stainless steel rotors. Piston/piston pumps have two cavities on the suction side. The fluid then flows from one chamber to the other through a helical motion. This results in very low shear and pulsation rates. The pump is usually installed in a cylindrical housing.

Rotary vane pump corrosion resistance

Rotary vane vacuum pumps are designed for use in a variety of industries. They feature plasma-treated corrosion-resistant parts and anti-suck-back valves to help reduce the number of corrosive vapors entering the pump. These pumps are commonly used in freeze dryers, vacuum ovens, and degassing processes. The high flow rates they provide in their working vacuum allow them to speed up processes and reduce the time it takes to run them. Plus, they have energy-efficient motors and silent volume. <br/While rotary vane vacuum pumps are relatively corrosion resistant, they should not be used for aggressive chemicals. For these chemicals, the most suitable pump is the chemical mixing pump, which combines two types of pumps to improve corrosion resistance. If the application requires a more powerful pump, a progressive cavity pump (eg VACUU*PURE 10C) is suitable.
Oil seals used in rotary vane pumps are important to pump performance. The oil seal prevents corrosion of the aluminum parts of the rotary vane pump and prolongs the service life. Most rotary vane vacuum pumps have a standard set of components, although each component may have different oil seals.
Rotary vane vacuum pumps are the most common type of positive displacement pump. They provide quiet operation and long service life. They are also reliable and inexpensive and can be used in a variety of applications.
Vacuum Pump

Roots pumps are primarily used as a vacuum booster

Root vacuum pumps are mainly used as vacuum boosters in industrial applications. They need a thorough understanding of operating principles and proper maintenance to function properly. This course is an introduction to Roots vacuum pumps, covering topics such as pump principles, multi-stage pumps, temperature effects, gas cooling, and maintenance.
Roots pumps have many advantages, including compact and quiet operation. They do not generate particles and have a long service life. They also don’t require oil and have a small footprint. However, Roots pumps have several disadvantages, including relatively high maintenance costs and low pumping speeds near atmospheric pressure.
Root vacuum pumps are often used with rotary vane vacuum pumps. They work on the same principle, the air enters a conveying unit formed by two rolling pistons in the housing. The piston heads are separated from each other, and the air passes through the unit without being reduced until it is discharged. When the air in the next unit reaches a higher absolute pressure, it is expelled from the last unit.
Roots pumps can be classified as sheathed or sealed. Roots pumps with sealed motors are suitable for pumping toxic gases. They have less clearance between the stator and motor rotor and have a sealed tank.

China Vacuum Pressure Gauge for H-825 Vacuum Pump     vacuum pump adapter	China Vacuum Pressure Gauge for H-825 Vacuum Pump     vacuum pump adapter
editor by czh 2022-11-28

China Guoyiyan Vacuum Cupping Set with Hand Pump -24 Cups with high quality

Product Description

 

 

place of Origin:  ZHangZhoug.China  Brand Name:  Guoyiyan
 Model Number:  RBGYY  Product name:  massage cupping set
 Material:  ABS  Function:  health care massage
 Color:  Transparent  Usage Time:  5-15mins
 Packing:

 cartons

COMPANY INFORMATION

FAQ

POSITIVE FEEDBACK

US $4.5-6.2
/ Set
|
100 Sets

(Min. Order)

###

After Sale Services: Free Spare Parts
Material: ABS Plastic
Color: Transparent
Warranty: None
Properiies: Chinese Medicine Apparatus
Customization: None

###

Customization:

###

place of Origin:  Zhejiang.China  Brand Name:  Guoyiyan
 Model Number:  RBGYY  Product name:  massage cupping set
 Material:  ABS  Function:  health care massage
 Color:  Transparent  Usage Time:  5-15mins
 Packing:

 cartons

US $4.5-6.2
/ Set
|
100 Sets

(Min. Order)

###

After Sale Services: Free Spare Parts
Material: ABS Plastic
Color: Transparent
Warranty: None
Properiies: Chinese Medicine Apparatus
Customization: None

###

Customization:

###

place of Origin:  Zhejiang.China  Brand Name:  Guoyiyan
 Model Number:  RBGYY  Product name:  massage cupping set
 Material:  ABS  Function:  health care massage
 Color:  Transparent  Usage Time:  5-15mins
 Packing:

 cartons

Types of vacuum pumps

A vacuum pump is a device that draws gas molecules from a sealed volume and leaves a partial vacuum in its wake. Its job is to create a relative vacuum within a specific volume or volume. There are many types of vacuum pumps, including centrifugal, screw and diaphragm.
Vacuum Pump

Forward centrifugal pump

Positive displacement centrifugal vacuum pumps are one of the most commonly used pump types in the oil and gas industry. Their efficiency is limited to a range of materials and can handle relatively high solids concentrations. However, using these pumps has some advantages over other types of pumps.
Positive displacement pumps have an enlarged cavity on the suction side and a reduced cavity on the discharge side. This makes them ideal for applications involving high viscosity fluids and high pressures. Their design makes it possible to precisely measure and control the amount of liquid pumped. Positive displacement pumps are also ideal for applications requiring precise metering.
Positive displacement pumps are superior to centrifugal pumps in several ways. They can handle higher viscosity materials than centrifuges. These pumps also operate at lower speeds than centrifugal pumps, which makes them more suitable for certain applications. Positive displacement pumps are also less prone to wear.
Positive displacement vacuum pumps operate by drawing fluid into a chamber and expanding it to a larger volume, then venting it to the atmosphere. This process happens several times per second. When maximum expansion is reached, the intake valve closes, the exhaust valve opens, and fluid is ejected. Positive displacement vacuum pumps are highly efficient and commonly used in many industries.

Self-priming centrifugal pump

Self-priming centrifugal pumps are designed with a water reservoir to help remove air from the pump. This water is then recirculated throughout the pump, allowing the pump to run without air. The water reservoir can be located above or in front of the impeller. The pump can then reserve water for the initial start.
The casing of the pump contains an increasingly larger channel forming a cavity retainer and semi-double volute. When water enters the pump through channel A, it flows back to the impeller through channels B-C. When the pump is started a second time, the water in the pump body will be recirculated back through the impeller. This recycling process happens automatically.
These pumps are available in a variety of models and materials. They feature special stainless steel castings that are corrosion and wear-resistant. They can be used in high-pressure applications and their design eliminates the need for inlet check valves and intermediate valves. They can also be equipped with long intake pipes, which do not require activation.
Self-priming centrifugal pumps are designed to run on their own, but there are some limitations. They cannot operate without a liquid source. A foot valve or external liquid source can help you start the self-priming pump.

Screw Pump

The mechanical and thermal characteristics of a screw vacuum pump are critical to its operation. They feature a small gap between the rotor and stator to minimize backflow and thermal growth. Temperature is a key factor in their performance, so they have an internal cooling system that uses water that circulates through the pump’s stator channels. The pump is equipped with a thermostatically controlled valve to regulate the water flow. Also includes a thermostatic switch for thermal control.
Screw vacuum pumps work by trapping gas in the space between the rotor and the housing. The gas is then moved to the exhaust port, where it is expelled at atmospheric pressure. The tapered discharge end of the screw further reduces the volume of gas trapped in the chamber. These two factors allow the pump to work efficiently and safely.
Screw vacuum pumps are designed for a variety of applications. In some applications, the pump needs to operate at very low pressures, such as when pumping large volumes of air. For this application, the SCREWLINE SP pump is ideal. Their low discharge temperature and direct pumping path ensure industrial process uptime. These pumps also feature non-contact shaft seals to reduce mechanical wear. Additionally, they feature a special cantilever bearing arrangement to eliminate potential sources of bearing failure and lubrication contamination.
Screw vacuum pumps use an air-cooled screw to generate a vacuum. They are compact, and clean, and have a remote monitoring system with built-in intelligence. By using the app, users can monitor pump performance remotely.
Vacuum Pump

Diaphragm Pump

Diaphragm vacuum pumps are one of the most common types of vacuum pumps found in laboratories and manufacturing facilities. The diaphragm is an elastomeric membrane held in place around the outer diameter. While it is not possible to seal a diaphragm vacuum pump, there are ways to alleviate the problems associated with this design.
Diaphragm vacuum pumps are versatile and can be used in a variety of clean vacuum applications. These pumps are commercially available with a built-in valve system, but they can also be modified to include one. Because diaphragm pumps are so versatile, it’s important to choose the right type for the job. Understanding how pumps work will help you match the right pump to the right application.
Diaphragm vacuum pumps offer a wide range of advantages, including an extremely long service life. Most diaphragm pumps can last up to ten thousand hours. However, they may be inefficient for processes that require deep vacuum, in which case alternative technologies may be required. Additionally, due to the physics of diaphragm pumps, the size of these pumps may be limited. Also, they are not suitable for high-speed pumping.
Diaphragm vacuum pumps are a versatile subset of laboratory pumps. They are popular for their oil-free construction and low maintenance operation. They are available in a variety of styles and have many optional features. In addition to low maintenance operation, they are chemically resistant and can be used with a variety of sample types. However, diaphragm pumps tend to have lower displacements than other vacuum pumps.

Atmospheric pressure is a key factor in a vacuum pump system

Atmospheric pressure is the pressure created by the collision of air molecules. The more they collide, the greater the pressure. This applies to pure gases and mixtures. When you measure atmospheric pressure, the pressure gauge reads about 14.7 psia. The higher the pressure, the greater the force on the gas molecules.
The gas entering the vacuum pump system is below atmospheric pressure and may contain entrained liquids. The mechanism of this process can be explained by molecular kinetic energy theory. The theory assumes that gas molecules in the atmosphere have high velocities. The resulting gas molecules will then start moving in random directions, colliding with each other and creating pressure on the walls of the vacuum vessel.
Atmospheric pressure is a critical factor in a vacuum pump system. A vacuum pump system is useless without proper atmospheric pressure measurement. The pressure in the atmosphere is the total pressure of all gases, including nitrogen and oxygen. Using total pressure instead of partial pressure can cause problems. The thermal conductivity of various gases varies widely, so working at full pressure can be dangerous.
When choosing a vacuum pump, consider its operating range. Some pumps operate at low atmospheric pressure, while others are designed to operate at high or ultra-high pressure. Different types of pumps employ different technologies that enhance their unique advantages.
Vacuum Pump

The screw pump is less efficient in pumping gases with smaller molecular weight

Vacuuming requires a high-quality pump. This type of pump must be able to pump gas of high purity and very low pressure. Screw pumps can be used in laboratory applications and are more efficient when pumping small molecular weight gases. Chemical resistance is critical to pump life. Chemical resistant materials are also available. Chemically resistant wetted materials minimize wear.
Gear pumps are more efficient than screw pumps, but are less efficient when pumping lower molecular weight gases. Gear pumps also require a larger motor to achieve the same pumping capacity. Compared to gear pumps, progressive cavity pumps also have lower noise levels and longer service life. In addition, gear pumps have a large footprint and are not suitable for tight spaces.
Progressive cavity pumps have two or three screws and a housing and side cover. They are also equipped with gears and bearings. Their mechanical design allows them to operate in high pressure environments with extremely low noise. The progressive cavity pump is a versatile pump that can be used in a variety of applications.
Dry screw compressors have different aspect ratios and can operate at high and low pressures. The maximum allowable differential pressure for screw compressors ranges from 0.4 MPa for 3/5 rotors to 1.5 MPa for 4/6 rotors. These numbers need to be determined on a case-by-case basis.

China Guoyiyan Vacuum Cupping Set with Hand Pump -24 Cups     with high quality China Guoyiyan Vacuum Cupping Set with Hand Pump -24 Cups     with high quality
editor by czh 2022-11-27

China AC Oil Free Piston Type Double Piston Vacuum Pump for Beauty Instrument with Hot selling

Product Description

Product Description

 

ITEM NO HC80A2
Name AC Oil free vacuum pump
Packing 5 pcs / carton case
200 pcs / pallet
Dimension 150*95*135 mm
Net Weight 2.25 kg
Technical Specification Voltage : According to your requirements ;
Input power:<=90W ;
Power: <=100W ;
Vacuum flow
28 L/min @-86Kpa ; (One-Grade vacuum)
14 L/min @-95Kpa ; (Two-Grade vacuum)
Noise : ≤42dB(A) ;
Speed: 1440rpm /1700 rpm ; 
Temperature : -5ºC-40ºC ;
Thermal protector : 135ºC ±5 ;
Insulation class: B

 

Detailed Photos

Why choose us

 

Customers Feedback

 

Company Profile

Certifications

 

Packaging & Shipping

 

FAQ

Q.1: What’s your factory address ? May I visit your factory ?

Our factory is located in HangZhou city, ZHangZhoug province, near to HangZhou, ZheJiang and HangZhou, about 2 hours by bus or train.Welcome to visit our factory.
Q.2: When I get my products, is there anything I should pay attention to ?
It need to clear the filter once every 2 months.
When use it, it need to handle with care and pay more attention to waterproof.
Q.3 : Can I buy the sample to test?
We are pleased to send the samples for your evaluation.And the samples shipping freight can be return back to you with next bulk order .
Q.4: Do you have test records of every pump?
We will inspect products 3 times before shipment and every pump have the test records. We will keep these test records to our quality traceability system about 3-5 years.
Test items : workmanship, air flow rate, power, vacuum pressure, current, noise, vibration , temperature and durability etc.

Q.5:How long is the life of the your pump?
“Quality is our culture”, our vacuum pump with long life (20000 hours ) and high quality ( stable air flow, import spare parts,
high workmanship etc ).
Q.6: What’s your warranty?
Our warranty is 2 years.It means that if our machine has any problems within 2 years, we will send you new 1 or free spare parts for your replacement.
Q.7: Question : How many years of your factory?
Our factory has the production experience more than 20 years.
We make main spare parts of vacum pump by ourselves (include the motor), so we can control the pumps quality very well
Q.8: Question: Can you produce products same/ similar with mine?
We have professional and experienced R & D team, so we can better serve customers to achieve high-end customization and development. We accept the ODM and OEM.

After-sales Service: Online Support
Warranty: Two Year
Oil or Not: Oil Free
Structure: Piston Pump
Exhauster Method: Piston Vacuum Pump
Vacuum Degree: Vacuum

###

Samples:
US$ 50/units
1 units(Min.Order)

|
Request Sample

###

Customization:

###

ITEM NO HC80A2
Name AC Oil free vacuum pump
Packing 5 pcs / carton case
200 pcs / pallet
Dimension 150*95*135 mm
Net Weight 2.25 kg
Technical Specification Voltage : According to your requirements ;
Input power:<=90W ;
Power: <=100W ;
Vacuum flow : 
28 L/min @-86Kpa ; (One-Grade vacuum)
14 L/min @-95Kpa ; (Two-Grade vacuum)
Noise : ≤42dB(A) ;
Speed: 1440rpm /1700 rpm ; 
Temperature : -5ºC-40ºC ;
Thermal protector : 135ºC ±5 ;
Insulation class: B
After-sales Service: Online Support
Warranty: Two Year
Oil or Not: Oil Free
Structure: Piston Pump
Exhauster Method: Piston Vacuum Pump
Vacuum Degree: Vacuum

###

Samples:
US$ 50/units
1 units(Min.Order)

|
Request Sample

###

Customization:

###

ITEM NO HC80A2
Name AC Oil free vacuum pump
Packing 5 pcs / carton case
200 pcs / pallet
Dimension 150*95*135 mm
Net Weight 2.25 kg
Technical Specification Voltage : According to your requirements ;
Input power:<=90W ;
Power: <=100W ;
Vacuum flow : 
28 L/min @-86Kpa ; (One-Grade vacuum)
14 L/min @-95Kpa ; (Two-Grade vacuum)
Noise : ≤42dB(A) ;
Speed: 1440rpm /1700 rpm ; 
Temperature : -5ºC-40ºC ;
Thermal protector : 135ºC ±5 ;
Insulation class: B

Types of vacuum pumps

A vacuum pump is a device that draws gas molecules from a sealed volume and maintains a partial vacuum. Its job is to create a vacuum in a volume, usually one of several. There are several types of vacuum pumps, such as root pumps, diaphragm pumps, rotary piston pumps, and self-priming centrifugal pumps.

The diaphragm pump is a dry positive displacement vacuum pump

Diaphragm pumps are a versatile type of vacuum pump. They can be installed in a variety of scenarios including container emptying, positive suction, and simultaneous fluid mixing. Their performance depends on the stiffness and durability of the diaphragm, which in turn depends on the material.
They have good performance when running in dry mode. Diaphragm pumps work very similarly to the human heart, which is why they are often used to create artificial hearts. In addition, the diaphragm pump is self-priming and has high efficiency. They are also capable of handling the most viscous liquids and are used in almost all industries.
However, this type of pump has several disadvantages. One of them is that they are difficult to restart after a power outage. Another disadvantage is that they can generate a lot of heat. Fortunately, this heat is carried away by airflow. However, this heat builds up in the multistage pump. If this happens, the diaphragm or motor may be damaged. Diaphragm pumps operating in two or more stages should be fitted with solenoid valves to maintain vacuum stability.
Diaphragm pumps are a good choice for drying processes where hygiene is important. These pumps have check valves and rubber or Teflon diaphragms. Diaphragm pumps are also ideal for high viscosity applications where shear sensitivity is important.
Vacuum Pump

Roots pumps are dry method centrifugal pumps

Roots pumps use a vane rotor pump with two counter-rotating vanes that move in opposite directions to move the gas. They are often the first choice for high-throughput process applications. Depending on the size and number of blades, they can withstand up to 10 Torr.
Centrifugal pumps have several advantages, including the ability to handle corrosive fluids and high temperatures. However, when choosing a pump, it is essential to choose a reputable manufacturer. These companies will be able to advise you on the best pump design for your needs and provide excellent after-sales support. Roots pumps can be used in a wide range of industrial applications including chemical, food, and biotechnology.
The Roots pump is a dry centrifugal pump whose geometry enables it to achieve high compression ratios. The screw rotors are synchronized by a set of timing gears that allow gas to pass in both directions and create a compressed state in the chamber. The pre-compressed gas is discharged through a pressure connection and cooled with water. Some pumps are also able to accept additional cooling gas, but this should be done with caution.
The size of the impeller plays an important role in determining the pump head. The impeller diameter determines how high the pump can lift the liquid. Impeller speed also affects the head. Since the head is proportional to the specific gravity of the liquid, the available suction pressure will be proportional to the density of the liquid. The density of water is about 1.2 kg/m3, and the suction pressure of the centrifugal pump is not enough to lift the water.

The rotary vane pump is a self-priming centrifugal pump

A rotary vane pump is a centrifugal pump with a circular pump head and a cycloid cam that supports the rotor. The rotor is close to the cam wall, and two side plates seal the rotor. Vanes in vane pumps are installed in these cavities, and the rotor rotates at high speed, pushing fluid in and out of the pump. The pump offers several advantages, including a reversible design and the ability to handle a wide variety of clean fluids.
Agknx Pumps manufactures a wide range of vane pumps that combine high performance, low cost, and easy maintenance. These pumps handle medium to high viscosity liquids up to 500 degrees Fahrenheit and 200,000 SSU.
The suction side of the rotary vane pump has a discharge port, and the valve prevents the backflow of the discharge air. When the maximum pressure is reached, the outlet valve closes to prevent the backflow of exhaust gas. The mechanical separation step separates the oil from the gas in the pump circuit and returns the remaining oil particles to the sump. The float valve then reintroduces these oil particles into the oil circuit of the pump. The gas produced is almost oil-free and can be blown out of a pipe or hose.
Rotary vane pumps are self-priming positive displacement pumps commonly used in hydraulic, aeration, and vacuum systems. Unlike gear pumps, rotary vane pumps can maintain high-pressure levels while using relatively low suction pressures. The pump is also very effective when pumping viscous or high-viscosity liquids.
Vacuum Pump

Rotary piston pumps are dry method positive displacement pumps

Rotary piston pumps are dry positive displacement pumps designed to deliver high-viscosity fluids. They are capable of pumping a variety of liquids and can run dry without damaging the liquid. Rotary piston pumps are available in a variety of designs. Some are single shafts, some are two shafts and four bearings.
Positive displacement pumps operate slower than centrifugal pumps. This feature makes the positive displacement pump more sensitive to wear. Piston and plunger reciprocating pumps are particularly prone to wear. For more demanding applications, progressive cavity, diaphragm or lobe pumps may be a better choice.
Positive displacement pumps are typically used to pump high-viscosity fluids. This is because the pump relies on a mechanical seal between the rotating elements and the pump casing. As a result, when fluids have low viscosity, their performance is limited. Additionally, low viscosity fluids can cause valve slippage.
These pumps have a piston/plunger arrangement using stainless steel rotors. Piston/piston pumps have two cavities on the suction side. The fluid then flows from one chamber to the other through a helical motion. This results in very low shear and pulsation rates. The pump is usually installed in a cylindrical housing.

Rotary vane pump corrosion resistance

Rotary vane vacuum pumps are designed for use in a variety of industries. They feature plasma-treated corrosion-resistant parts and anti-suck-back valves to help reduce the number of corrosive vapors entering the pump. These pumps are commonly used in freeze dryers, vacuum ovens, and degassing processes. The high flow rates they provide in their working vacuum allow them to speed up processes and reduce the time it takes to run them. Plus, they have energy-efficient motors and silent volume. <br/While rotary vane vacuum pumps are relatively corrosion resistant, they should not be used for aggressive chemicals. For these chemicals, the most suitable pump is the chemical mixing pump, which combines two types of pumps to improve corrosion resistance. If the application requires a more powerful pump, a progressive cavity pump (eg VACUU*PURE 10C) is suitable.
Oil seals used in rotary vane pumps are important to pump performance. The oil seal prevents corrosion of the aluminum parts of the rotary vane pump and prolongs the service life. Most rotary vane vacuum pumps have a standard set of components, although each component may have different oil seals.
Rotary vane vacuum pumps are the most common type of positive displacement pump. They provide quiet operation and long service life. They are also reliable and inexpensive and can be used in a variety of applications.
Vacuum Pump

Roots pumps are primarily used as a vacuum booster

Root vacuum pumps are mainly used as vacuum boosters in industrial applications. They need a thorough understanding of operating principles and proper maintenance to function properly. This course is an introduction to Roots vacuum pumps, covering topics such as pump principles, multi-stage pumps, temperature effects, gas cooling, and maintenance.
Roots pumps have many advantages, including compact and quiet operation. They do not generate particles and have a long service life. They also don’t require oil and have a small footprint. However, Roots pumps have several disadvantages, including relatively high maintenance costs and low pumping speeds near atmospheric pressure.
Root vacuum pumps are often used with rotary vane vacuum pumps. They work on the same principle, the air enters a conveying unit formed by two rolling pistons in the housing. The piston heads are separated from each other, and the air passes through the unit without being reduced until it is discharged. When the air in the next unit reaches a higher absolute pressure, it is expelled from the last unit.
Roots pumps can be classified as sheathed or sealed. Roots pumps with sealed motors are suitable for pumping toxic gases. They have less clearance between the stator and motor rotor and have a sealed tank.

China AC Oil Free Piston Type Double Piston Vacuum Pump for Beauty Instrument     with Hot selling	China AC Oil Free Piston Type Double Piston Vacuum Pump for Beauty Instrument     with Hot selling
editor by czh 2022-11-26

China Factory Supply Electrical Vacuum Pump Vr200 vacuum pump ac

Product Description

                                    VR200 Dispenser Mounted Vacuum Pump

VR200 is a new style of electrical dispersed vacuum pump, which is evolved from VR200. It’s also called fuel oiling pump, dispenser vacuum pump electrically driven pump, petroleum vapor pump which is about the stage ll vapor recovery systems. This 1 effectively solves the problem of lacking driving force source that VR200 harassed. VR200 can be used on a blender or non-blender dispenser with 2 hoses pumping either individually or simultaneously. It has no complex software or electronic board, with easy installation and safety operation. It’s the best option for double-products dispenser.

Sample Shipping:

By express (UPS,DHL, FedEx, , etc.)

Sample’s lead time: 2-5 days 

Mass productions’ lead time: 7-31 days 

By sea shipping when bulk order

Company Profile

ZHangZhoug Galaxy Machinery Manufacture Co., Ltd. is a specializedmanufacturer of petroleum machinery equipment, which integrates researchand sales. The main products including air-eliminator dispenser vane pumps,emergency shut-off valves, automatic nozzles, Explosion proof control boxswivel sight glasses, etc. Our production building covers an area of 28,600 square meters with over 156 highly skilled staffs and 26 senior technical engineers. We also have 165 sets machinery-processing equipment such as the processing center, numerically controlled lathe and so on. 

The enterprise has passed ISO9001 quality management system certificate,and EU’s CE Certificates. Moreover, we are increasingly devoting ourselves to technical development and innovation. Besides, in order to ensure superior quality and stable performance, all our products are operated strictly according to QMS in the process of designing, researching, raw material purchasing, manufacturing, performance testing and afterservice.

Our company’s quality policy is “Galaxy’s quality guaranteed forever”. Wesincerely welcome our new and old customers to visit the enterprise andexpect to step to glorious success with all friends together. Please feel free tocontact us for more information.

We sincererly welcome esteemed to join in us to achieve the common prosperity.

Client Sales:
Lily Liu
ZHangZhoug Galaxy Machinery Manufacture Co., Ltd.
 
Add:Xihu (West Lake) Dis.’ou Industrial District, Oubei Town, HangZhou, ZHangZhoug ,China

After-sales Service: 12 Months
Warranty: 12 Months
Oil or Not: Oil Free
Structure: Rotary Vacuum Pump
Exhauster Method: Positive Displacement Pump
Vacuum Degree: Vacuum

###

Samples:
US$ 300/Piece
1 Piece(Min.Order)

|
Request Sample

###

Customization:
After-sales Service: 12 Months
Warranty: 12 Months
Oil or Not: Oil Free
Structure: Rotary Vacuum Pump
Exhauster Method: Positive Displacement Pump
Vacuum Degree: Vacuum

###

Samples:
US$ 300/Piece
1 Piece(Min.Order)

|
Request Sample

###

Customization:

Types of vacuum pumps

A vacuum pump is a device that draws gas molecules from a sealed volume and maintains a partial vacuum. Its job is to create a vacuum in a volume, usually one of several. There are several types of vacuum pumps, such as root pumps, diaphragm pumps, rotary piston pumps, and self-priming centrifugal pumps.

The diaphragm pump is a dry positive displacement vacuum pump

Diaphragm pumps are a versatile type of vacuum pump. They can be installed in a variety of scenarios including container emptying, positive suction, and simultaneous fluid mixing. Their performance depends on the stiffness and durability of the diaphragm, which in turn depends on the material.
They have good performance when running in dry mode. Diaphragm pumps work very similarly to the human heart, which is why they are often used to create artificial hearts. In addition, the diaphragm pump is self-priming and has high efficiency. They are also capable of handling the most viscous liquids and are used in almost all industries.
However, this type of pump has several disadvantages. One of them is that they are difficult to restart after a power outage. Another disadvantage is that they can generate a lot of heat. Fortunately, this heat is carried away by airflow. However, this heat builds up in the multistage pump. If this happens, the diaphragm or motor may be damaged. Diaphragm pumps operating in two or more stages should be fitted with solenoid valves to maintain vacuum stability.
Diaphragm pumps are a good choice for drying processes where hygiene is important. These pumps have check valves and rubber or Teflon diaphragms. Diaphragm pumps are also ideal for high viscosity applications where shear sensitivity is important.
Vacuum Pump

Roots pumps are dry method centrifugal pumps

Roots pumps use a vane rotor pump with two counter-rotating vanes that move in opposite directions to move the gas. They are often the first choice for high-throughput process applications. Depending on the size and number of blades, they can withstand up to 10 Torr.
Centrifugal pumps have several advantages, including the ability to handle corrosive fluids and high temperatures. However, when choosing a pump, it is essential to choose a reputable manufacturer. These companies will be able to advise you on the best pump design for your needs and provide excellent after-sales support. Roots pumps can be used in a wide range of industrial applications including chemical, food, and biotechnology.
The Roots pump is a dry centrifugal pump whose geometry enables it to achieve high compression ratios. The screw rotors are synchronized by a set of timing gears that allow gas to pass in both directions and create a compressed state in the chamber. The pre-compressed gas is discharged through a pressure connection and cooled with water. Some pumps are also able to accept additional cooling gas, but this should be done with caution.
The size of the impeller plays an important role in determining the pump head. The impeller diameter determines how high the pump can lift the liquid. Impeller speed also affects the head. Since the head is proportional to the specific gravity of the liquid, the available suction pressure will be proportional to the density of the liquid. The density of water is about 1.2 kg/m3, and the suction pressure of the centrifugal pump is not enough to lift the water.

The rotary vane pump is a self-priming centrifugal pump

A rotary vane pump is a centrifugal pump with a circular pump head and a cycloid cam that supports the rotor. The rotor is close to the cam wall, and two side plates seal the rotor. Vanes in vane pumps are installed in these cavities, and the rotor rotates at high speed, pushing fluid in and out of the pump. The pump offers several advantages, including a reversible design and the ability to handle a wide variety of clean fluids.
Agknx Pumps manufactures a wide range of vane pumps that combine high performance, low cost, and easy maintenance. These pumps handle medium to high viscosity liquids up to 500 degrees Fahrenheit and 200,000 SSU.
The suction side of the rotary vane pump has a discharge port, and the valve prevents the backflow of the discharge air. When the maximum pressure is reached, the outlet valve closes to prevent the backflow of exhaust gas. The mechanical separation step separates the oil from the gas in the pump circuit and returns the remaining oil particles to the sump. The float valve then reintroduces these oil particles into the oil circuit of the pump. The gas produced is almost oil-free and can be blown out of a pipe or hose.
Rotary vane pumps are self-priming positive displacement pumps commonly used in hydraulic, aeration, and vacuum systems. Unlike gear pumps, rotary vane pumps can maintain high-pressure levels while using relatively low suction pressures. The pump is also very effective when pumping viscous or high-viscosity liquids.
Vacuum Pump

Rotary piston pumps are dry method positive displacement pumps

Rotary piston pumps are dry positive displacement pumps designed to deliver high-viscosity fluids. They are capable of pumping a variety of liquids and can run dry without damaging the liquid. Rotary piston pumps are available in a variety of designs. Some are single shafts, some are two shafts and four bearings.
Positive displacement pumps operate slower than centrifugal pumps. This feature makes the positive displacement pump more sensitive to wear. Piston and plunger reciprocating pumps are particularly prone to wear. For more demanding applications, progressive cavity, diaphragm or lobe pumps may be a better choice.
Positive displacement pumps are typically used to pump high-viscosity fluids. This is because the pump relies on a mechanical seal between the rotating elements and the pump casing. As a result, when fluids have low viscosity, their performance is limited. Additionally, low viscosity fluids can cause valve slippage.
These pumps have a piston/plunger arrangement using stainless steel rotors. Piston/piston pumps have two cavities on the suction side. The fluid then flows from one chamber to the other through a helical motion. This results in very low shear and pulsation rates. The pump is usually installed in a cylindrical housing.

Rotary vane pump corrosion resistance

Rotary vane vacuum pumps are designed for use in a variety of industries. They feature plasma-treated corrosion-resistant parts and anti-suck-back valves to help reduce the number of corrosive vapors entering the pump. These pumps are commonly used in freeze dryers, vacuum ovens, and degassing processes. The high flow rates they provide in their working vacuum allow them to speed up processes and reduce the time it takes to run them. Plus, they have energy-efficient motors and silent volume. <br/While rotary vane vacuum pumps are relatively corrosion resistant, they should not be used for aggressive chemicals. For these chemicals, the most suitable pump is the chemical mixing pump, which combines two types of pumps to improve corrosion resistance. If the application requires a more powerful pump, a progressive cavity pump (eg VACUU*PURE 10C) is suitable.
Oil seals used in rotary vane pumps are important to pump performance. The oil seal prevents corrosion of the aluminum parts of the rotary vane pump and prolongs the service life. Most rotary vane vacuum pumps have a standard set of components, although each component may have different oil seals.
Rotary vane vacuum pumps are the most common type of positive displacement pump. They provide quiet operation and long service life. They are also reliable and inexpensive and can be used in a variety of applications.
Vacuum Pump

Roots pumps are primarily used as a vacuum booster

Root vacuum pumps are mainly used as vacuum boosters in industrial applications. They need a thorough understanding of operating principles and proper maintenance to function properly. This course is an introduction to Roots vacuum pumps, covering topics such as pump principles, multi-stage pumps, temperature effects, gas cooling, and maintenance.
Roots pumps have many advantages, including compact and quiet operation. They do not generate particles and have a long service life. They also don’t require oil and have a small footprint. However, Roots pumps have several disadvantages, including relatively high maintenance costs and low pumping speeds near atmospheric pressure.
Root vacuum pumps are often used with rotary vane vacuum pumps. They work on the same principle, the air enters a conveying unit formed by two rolling pistons in the housing. The piston heads are separated from each other, and the air passes through the unit without being reduced until it is discharged. When the air in the next unit reaches a higher absolute pressure, it is expelled from the last unit.
Roots pumps can be classified as sheathed or sealed. Roots pumps with sealed motors are suitable for pumping toxic gases. They have less clearance between the stator and motor rotor and have a sealed tank.

China Factory Supply Electrical Vacuum Pump Vr200     vacuum pump acChina Factory Supply Electrical Vacuum Pump Vr200     vacuum pump ac
editor by czh 2022-11-25

China Polycold Chiller Wvcp4200 Cryochiler Vacuum Pump with Hot selling

Product Description


Short Description:

Fast Defrost
Cold trap cooled to -135ºC
Decrease Pump down Times by 25% to 50%
Lower power consumption
Minimal environmental impact, free of CFC and HCFCs

 

Technical Parameter

Model WVCP4200-S-H WVCP4200-D-H
Maximum cooling capacity(W) 4200 4200
The theory maximum pumping speed of tubular cold trap(L/S) 367500 367500
The theory maximum speed of plate cold trap(L/S) 529200 529200
Final vacuum(mbar) 2*10-8 2*10-8
Defrost time of maximum cold trap area(min) <3 <3
Adjustable range of defrost temperature(ºC) -20~30 -20~30
Pressure control mode Digital sensor+Mechanical switch Digital sensor+Mechanical switch
Quick restore balance pressure function(QRBP) Yes Yes
Oil blocking proof function(OBP) Yes Yes
4G Remote control Yes Yes
Cold media properties Pro-enviroment Pro-enviroment
Maximum surface area of tubular cold trap(m²) 2.5 2.5
Maximum surface area of plate cold trap(m²) 3.6 3.6
Specification of single cold trap(m²) φ16mm*50m /
Specification of double cold trap(m²) / 2*φ16mm*25m
Gas interface 12.7 copper welded junction(Standard) 12.7 copper welded junction(Standard)
ParkerCPI/VCR(Optional) ParkerCPI/VCR(Optional)
Cooling water flow(L/Min at 24ºC) 28 28
Cooling water alarm temperature(ºC) 38 38
Cooling tower Yes Yes
Cooling water connector(L/S) G3/4 G3/4
Maximum load power(kW) 16.5 16.5
Compressor nominal power(HP) 10 10
Power supply(50HZ) 380-400V AC 3P(H) 380-400V AC 3P(H)
200-230V AC 3P(L) 200-230V AC 3P(L)
Dimension(MM) 935(L)*873(D)*1809(H) 935(L)*873(D)*1809(H)
Weight(KG) 555 555

 

US $15,800-16,800
/ Piece
|
1 Piece

(Min. Order)

###

After-sales Service: Online&on The Field&Video Support
Warranty: 24months
Oil or Not: Oil
Structure: -150 ºC Deep Colding
Exhauster Method: Within System
Vacuum Degree: High Vacuum

###

Customization:

###

Model WVCP4200-S-H WVCP4200-D-H
Maximum cooling capacity(W) 4200 4200
The theory maximum pumping speed of tubular cold trap(L/S) 367500 367500
The theory maximum speed of plate cold trap(L/S) 529200 529200
Final vacuum(mbar) 2*10-8 2*10-8
Defrost time of maximum cold trap area(min) <3 <3
Adjustable range of defrost temperature(ºC) -20~30 -20~30
Pressure control mode Digital sensor+Mechanical switch Digital sensor+Mechanical switch
Quick restore balance pressure function(QRBP) Yes Yes
Oil blocking proof function(OBP) Yes Yes
4G Remote control Yes Yes
Cold media properties Pro-enviroment Pro-enviroment
Maximum surface area of tubular cold trap(m²) 2.5 2.5
Maximum surface area of plate cold trap(m²) 3.6 3.6
Specification of single cold trap(m²) φ16mm*50m /
Specification of double cold trap(m²) / 2*φ16mm*25m
Gas interface 12.7 copper welded junction(Standard) 12.7 copper welded junction(Standard)
ParkerCPI/VCR(Optional) ParkerCPI/VCR(Optional)
Cooling water flow(L/Min at 24ºC) 28 28
Cooling water alarm temperature(ºC) 38 38
Cooling tower Yes Yes
Cooling water connector(L/S) G3/4 G3/4
Maximum load power(kW) 16.5 16.5
Compressor nominal power(HP) 10 10
Power supply(50HZ) 380-400V AC 3P(H) 380-400V AC 3P(H)
200-230V AC 3P(L) 200-230V AC 3P(L)
Dimension(MM) 935(L)*873(D)*1809(H) 935(L)*873(D)*1809(H)
Weight(KG) 555 555
US $15,800-16,800
/ Piece
|
1 Piece

(Min. Order)

###

After-sales Service: Online&on The Field&Video Support
Warranty: 24months
Oil or Not: Oil
Structure: -150 ºC Deep Colding
Exhauster Method: Within System
Vacuum Degree: High Vacuum

###

Customization:

###

Model WVCP4200-S-H WVCP4200-D-H
Maximum cooling capacity(W) 4200 4200
The theory maximum pumping speed of tubular cold trap(L/S) 367500 367500
The theory maximum speed of plate cold trap(L/S) 529200 529200
Final vacuum(mbar) 2*10-8 2*10-8
Defrost time of maximum cold trap area(min) <3 <3
Adjustable range of defrost temperature(ºC) -20~30 -20~30
Pressure control mode Digital sensor+Mechanical switch Digital sensor+Mechanical switch
Quick restore balance pressure function(QRBP) Yes Yes
Oil blocking proof function(OBP) Yes Yes
4G Remote control Yes Yes
Cold media properties Pro-enviroment Pro-enviroment
Maximum surface area of tubular cold trap(m²) 2.5 2.5
Maximum surface area of plate cold trap(m²) 3.6 3.6
Specification of single cold trap(m²) φ16mm*50m /
Specification of double cold trap(m²) / 2*φ16mm*25m
Gas interface 12.7 copper welded junction(Standard) 12.7 copper welded junction(Standard)
ParkerCPI/VCR(Optional) ParkerCPI/VCR(Optional)
Cooling water flow(L/Min at 24ºC) 28 28
Cooling water alarm temperature(ºC) 38 38
Cooling tower Yes Yes
Cooling water connector(L/S) G3/4 G3/4
Maximum load power(kW) 16.5 16.5
Compressor nominal power(HP) 10 10
Power supply(50HZ) 380-400V AC 3P(H) 380-400V AC 3P(H)
200-230V AC 3P(L) 200-230V AC 3P(L)
Dimension(MM) 935(L)*873(D)*1809(H) 935(L)*873(D)*1809(H)
Weight(KG) 555 555

How to install a vacuum pump

A vacuum pump creates a relative vacuum within a sealed volume by drawing gas molecules from the sealed volume. Vacuum pumps can be used in a variety of industrial applications. They also offer various lubrication options. If you are considering purchasing, please understand its functions and features before purchasing.
Vacuum Pump

How it works

The working principle of a vacuum pump is called gas transfer. The principle can be further divided into two basic categories: positive displacement and momentum transfer. At high pressure and moderate vacuum, gas molecules collide and move and create a viscous flow. At higher vacuum levels, gas molecules separate to create molecular or transitional flows.
Another principle of vacuum pumps is fluid-tightness. There are two main types of seals: rotary seals and screw seals. Rotary seals prevent liquid leakage, while screw seals only allow liquids to flow out at higher pressures. Some pumps may not use the third seal.
The flow rate of the vacuum pump determines the machine’s ability to pump a certain amount of material. A higher pumping speed will shorten the drain time. Therefore, the mass flow of the vacuum pump must be carefully considered. The speed and type of vacuum must also be considered.
The working principle of a vacuum pump is to push gas molecules from a high-pressure state to a low-pressure state. This creates a partial vacuum. There are many different types of vacuum pumps, each with different functions. Some are mechanical, some are chemical. In either case, their function is the same: to create a partial or complete vacuum. Vacuum pumps use a variety of technologies and are sized according to the application. Proper sizing is critical for optimum efficiency.
Gas transfer pumps use the same principles as vacuum pumps but use different technology. One of the earliest examples is the Archimedes spiral. Its structure consists of a single screw inside a hollow cylinder. More modern designs use double or triple screws. The rotation of the screw causes gas molecules to be trapped in the cavity between the screw and the housing. The fluid is then discharged at slightly above atmospheric pressure. This difference is called the compression ratio.
Another type of vacuum pump is a diffusion pump. Its main use is industrial vacuum processing. It is used in applications such as mass spectrometry, nanotechnology and analytical instrumentation. These pumps are generally inexpensive to purchase and operate.

Apply

Vacuum pumps are essential for many scientific and industrial processes. They are used in the production of vacuum tubes, CRTs, lamps and semiconductor processing. They can also be used to support mechanical equipment. For example, they can be mounted on the engine of a motor vehicle. Likewise, they can be used to power hydraulic components of aircraft. Among other uses, the vacuum pump helps calibrate the gyroscope.
Vacuum pumps are widely used in the pharmaceutical industry and are one of the largest users of this technology. They help deal with hazardous materials and eliminate waste quickly. They are also used in power jets, dump fuel tanks and rear doors, among others. However, they are sensitive to contamination and should only be used in environments where leaks can be prevented. Therefore, choosing the right fluid for the application is very important.
The most popular type of vacuum pump is the rotary vane pump. These pumps are known for their high pumping speed and low pressure. Their efficient pumping capacity allows them to reach pressures below 10-6 bar. Additionally, they are usually oil-sealed and have excellent vacuuming capabilities.
Vacuum pumps are often used to remove air from closed systems. They create a vacuum by reducing the density of the air in the compressed space. This is done by using the mechanical force energy generated by the rotating shaft. When the pump is under pressure, it converts this energy into pneumatic power. When the pressure is different, the energy produced depends on the volume of the gas and the pressure difference between the inner and outer atmospheres.
Vacuum pumps are also used in the manufacture of solar cells. They are used in the manufacture of solar cells, including ingot casting processes as well as cell and module processes. The design of the vacuum system plays an important role in reducing the cost of the process, thus making it profitable. Due to their low maintenance costs, they are an invaluable tool for making solar cells.
Vacuum pumps are widely used in many applications. In addition to industrial and research uses, they are also used in water remediation.
Vacuum Pump

Oil Lubrication Option

Vacuum pumps are available in a variety of oil lubrication options. Choosing the right lubricant can help protect your vacuum pump and maximize its performance. Different base oils may contain different additives, such as antioxidants, and some contain additional additives for specific purposes. You should choose an oil with the right concentration of these additives for optimal lubrication of your vacuum pump.
Vacuum pumps are usually lubricated with paraffinic mineral oil. However, this type of lubricant evaporates as the temperature increases. To minimize evaporative losses, choose a lubricant with low vapor pressure. Also, you should choose lubricants that are resistant to extreme temperatures. Extreme temperatures can put extra stress on the oil and can even significantly shorten the life of the oil.
In terms of viscosity, synthetic oils are the best choice for vacuum pumps. These types of oils are designed to resist gas dissolution and are more resistant to corrosion. Therefore, synthetic oils are ideal for handling aggressive substances. Whether or not your pump needs lubrication, choosing a quality product is important.
The vacuum pump oil should be changed periodically according to the manufacturer’s recommendations. If you use a filter, you should also change the oil as soon as the filter reaches the end of its life. Unplanned oil changes will eventually cause the vacuum pump to not reach its maximum vacuum capacity.
You can buy vacuum pump oil from vacuum pump manufacturers or other suppliers. These options are available in a variety of sizes, and labels can be customized. The oil should be designed for the pump. However, you should check the manufacturer’s recommendations to avoid buying the wrong type.
If you choose to use a synthetic oil, it is important to use a good quality oil. It helps the pump work more efficiently and prolong its life.
Vacuum Pump

Install

After choosing a suitable location, the next step is to install the pump. First, place the pump on a flat surface. Then, screw the pump onto the motor body above the check valve. Make sure the accessories are wrapped with sealing tape and secured with screws. The direction of gas inflow and outflow is indicated by arrows on the pump. The direction of rotation around the pump is also shown.
During commissioning, check the operation of each part of the pump. If the pump is equipped with a pipe connection, the pipe should be the same size and shape as the pump flange. Also, make sure that the piping does not cause any pressure drop. In addition, the first three weeks of operation require the installation of protective nets at the suction ports.
When selecting a pump, consider the back pressure of the system. Too much back pressure will affect the capacity of the vacuum pump. Also, check the temperature of the seal. If the temperature is too high, the seal may be damaged. It could also be due to a partially closed valve in the recirculation line or a clogged filter. Circulation pumps and heat exchangers should also be checked for fouling.
The vacuum pump is usually installed in the chassis area of ​​the car. They can be mounted next to the engine or on a lower support frame. They are usually fastened to the bracket using suitable shock absorbers and isolating elements. However, before installing the vacuum pump, be sure to check the vacuum pump’s wiring harness before connecting it to the vehicle.
In many experimental setups, a vacuum pump is essential. However, improperly installed vacuum pumps can expose users to harmful vapors and chemicals. Appropriate plugs and belt guards should be installed to prevent any accidental chemical exposure. It is also important to install a fume hood for the pump.
In most cases, vacuum pumps come with installation manuals and instructions. Some manufacturers even offer start-up assistance if needed.

China Polycold Chiller Wvcp4200 Cryochiler Vacuum Pump     with Hot selling	China Polycold Chiller Wvcp4200 Cryochiler Vacuum Pump     with Hot selling
editor by czh 2022-11-24

China 78L/S Dry Screw Vacuum Pump Resistant Corrosion/Resistance to Water Vapor/ Used in Chemical Industry vacuum pump design

Product Description

Dry Screw Vacuum Pump RSP280

Product Description

Dry screw vacuum pumps operate with 2 screw rotors rotating in opposite directions. This traps the medium to be pumped between the cylinder and the screw chambers and transports it to the gas discharge. The advanced screw design results in lower electric energy consumption compared to standard screw designs. It also results in a lower heat load of the compressed gas.

Cooling can be achieved through a high performance air cooling method eliminating the need of cooling water or indirect cooling method resulting in uniform temperatures throughout the pump body, eliminating cold spots and providing a thermally stable water jacket. The advanced screw design allows for best-in-class hydrogen pumping capabilities. Water cooling can take place in form of both direct water cooling or radiator cooling with air-cooled heat exchangers.

  • Complete series with pumping capacity of 35 to 1100 m3/h
  • Optimal ultimate pressure and broadest range of applications
  • Completely dry and oil-free
  • High pumping speed at atmospheric pressure reduces the pump-down time
  • Water cooling with temperature monitoring
  • Saving energy costs through internal compression
  • Wear-free dynamic seal
  • Direct gas flow and optimized temperature profile minimize deposits
  • Low energy consumption, low noise level
  • Extensive range of accessories

Product Parameters

Product Model 50/60Hz RSP280
Pumping Speed 50Hz 280m³/H
60Hz 336m³/H
Ultimate Pressure mbar 0.5
Inlet Diameter mm DN80
Outlet Diameter mm DN40
Motor Power kW 7.5
Rotate Speed r/min 2900
Noise Level dB 75
Cooling water pressure barg 2-4
Cooling water flow L/min 6
Cooling water temperature °C 5-35 
Cooling Mode   Water Cooling
Net Weight kg 253

 

Detailed Photos

 

Installation Instructions

 

Certifications

Company Profile

US $15,000-19,000
/ Set
|
1 Set

(Min. Order)

###

Screw Number: Double Screw Pump
Screw Suction Method: Single Suction
Pump Shaft Position: Horizontal
Performance: Anticorrosion
Application: Chemical
Certification: CE, ISO

###

Samples:
US$ 19000/Set
1 Set(Min.Order)

|
Request Sample

###

Customization:

###

Product Model 50/60Hz RSP280
Pumping Speed 50Hz 280m³/H
60Hz 336m³/H
Ultimate Pressure mbar 0.5
Inlet Diameter mm DN80
Outlet Diameter mm DN40
Motor Power kW 7.5
Rotate Speed r/min 2900
Noise Level dB 75
Cooling water pressure barg 2-4
Cooling water flow L/min 6
Cooling water temperature °C 5-35 
Cooling Mode   Water Cooling
Net Weight kg 253
US $15,000-19,000
/ Set
|
1 Set

(Min. Order)

###

Screw Number: Double Screw Pump
Screw Suction Method: Single Suction
Pump Shaft Position: Horizontal
Performance: Anticorrosion
Application: Chemical
Certification: CE, ISO

###

Samples:
US$ 19000/Set
1 Set(Min.Order)

|
Request Sample

###

Customization:

###

Product Model 50/60Hz RSP280
Pumping Speed 50Hz 280m³/H
60Hz 336m³/H
Ultimate Pressure mbar 0.5
Inlet Diameter mm DN80
Outlet Diameter mm DN40
Motor Power kW 7.5
Rotate Speed r/min 2900
Noise Level dB 75
Cooling water pressure barg 2-4
Cooling water flow L/min 6
Cooling water temperature °C 5-35 
Cooling Mode   Water Cooling
Net Weight kg 253

How to check the vacuum pump

A vacuum pump is a machine that draws gas molecules from a volume and maintains a partial vacuum. Its main job is to create a relative vacuum within the stated capabilities. If your vacuum pump isn’t working properly, it may need service. Read on to learn more about the types of vacuum pumps and how to check them.
Vacuum Pump

Principle of industrial vacuum pump

Industrial vacuum pumps are used in industrial processes that require vacuum. These pumps are designed to generate, improve and maintain vacuum. Learn about the different types of industrial vacuum technology. You can start by reading about the most common types of industrial vacuum pumps. These pumps can be used in a variety of industrial processes from cleaning to manufacturing.
Regardless of the technology used to manufacture these pumps, the basic principles behind their operation are the same. The speed and mass flow of the pump will determine its capacity and suitability. A faster flow rate will minimize the time it takes for the machine to empty. Another important factor to consider is the type of vacuum you need.
A liquid ring vacuum pump is an industrial pump that uses a ring of liquid to form a seal. This type of pump is best suited for applications with high vapor loads and high liquid carry-over. Liquid ring vacuum pumps can be divided into two categories: liquid ring vacuum pumps and scroll vacuum pumps.
Industrial vacuum pumps work by removing gas molecules from a chamber. The partial vacuum created allows material to flow through the void. As more molecules are removed, the pressure in the chamber decreases, releasing energy that can be used for a variety of different purposes.
The most common use of industrial vacuum pumps is for electric lights. In these lamps, a vacuum pump removes the gas, causing the bulb to light up. Energy from the vacuum is also used in aircraft to power instruments. In addition to powering industrial vacuum cleaners, they are used in a variety of other environments.
High-performance industrial vacuum systems require specific materials that can withstand extreme pressure. This means that the materials used in these systems need to be properly checked. They must also be free of organic debris and other contaminants before they can be safely placed in the chamber.

Types of vacuum pumps

There are various types of vacuum pumps. Which one to choose should depend on the purpose of the pump and the degree of vacuum that must be achieved. It is mainly divided into three categories: rough vacuum or low vacuum, high vacuum and ultra-high vacuum. They all have varying degrees of scarcity. The higher the pressure, the fewer molecules per cubic centimeter. This in turn improves vacuum quality.
The vacuum pump is critical to the operation of the vacuum system. These devices are divided into three main categories according to their working pressure range. These pumps have different characteristics and technologies that make them ideal for specific applications. The choice of vacuum pump required for a particular application depends on how much vacuum you need, and how much power you are willing to spend.
Vacuum pumps are used in a variety of industrial and scientific processes. Their main function is to remove gas molecules from the sealed volume, leaving a partial vacuum. There are many different types of vacuum pumps, including rotary piston, liquid ring and scroll vacuum pumps. In addition, turbomolecular pumps are used.
Dry vacuum pumps are more expensive than wet vacuum pumps. Wet vacuum pumps use oil as their lubricating fluid. Different types of oils are used depending on the application. Some wet pumps have additional features, including contaminant filtration. However, wet systems have one major disadvantage: the contact between oil and fluid. To avoid this, oil separators are usually used.
There are several different types of vacuum pumps. The basic type is the positive displacement pump. It operates by expanding the chamber and removing gas molecules. The intake valve draws fluid into the chamber, while the exhaust valve opens when the chamber is at maximum expansion. This cycle repeats several times per second. Positive displacement pumps are often used in multistage vacuum systems.
Vacuum Pump

Maintenance of vacuum pump

Regular maintenance is very important to ensure the long-term effective use of the vacuum pump. One way to ensure proper pump performance is to change the oil regularly. Pump oil may be contaminated by vapor condensation. To avoid this problem, close the inlet valve for 20 to 30 minutes before applying vacuum. It is also important to install an inlet cold trap to protect the pump from corrosive vapors.
Another way to prolong the life of your vacuum pump is to periodically remove any solvent in it. This step reduces internal corrosion and prevents premature pump failure. During maintenance, be sure to disconnect the power supply to the vacuum pump. After cleaning, store it in a dry and safe place. The pump should also be disposed of in accordance with local regulations.
Vacuum pumps may require frequent oil changes, especially when used in wet chemistry. The standard rule is to change the oil after 3,000 hours of use, but some pumps require more frequent oil changes. It is also important to clean the oil regularly, as dirty or discolored oil can affect the performance of the pump.
Vacuum pumps are often equipped with on-site glass to allow the user to visually check the oil level. Clean oil will appear transparent, while dirty oil will appear darker. Frequent oil changes are essential, as oil changes can help spot various potential problems. Changes in vacuum pump performance or strange noises are also good indicators of a problem.
After an oil change, the vacuum pump should be cleaned thoroughly with a soft cloth and mild degreaser. Oil changes should take less than ten minutes, and they will extend the life of your equipment. Additionally, the outside of the pump should be wiped with a cloth or rag.
The pump must be properly vented to avoid internal corrosion. If possible, place the pump away from hot equipment or rooms. Overheating can reduce the viscosity of the oil and cause premature pump failure. In addition, it can lead to overwork of other expensive scientific equipment. Heat can also cause cracked rubber parts and oil leaks.
Vacuum Pump

Signs of damage to the vacuum pump

A bad vacuum pump can cause a variety of automotive problems, including poor fuel economy, difficult braking, undercarriage oil leaks, and faulty air conditioning. If any of these problems occur, call a mechanic to check your vehicle’s vacuum pump. You can also check the air conditioner and brake pedal to see if they are working properly.
A loud noise from the pump can also be a symptom of a malfunction. These noises are often caused by the aging and accumulated wear of specific components. If this is the case, the diaphragm, valve plate or seals may need to be replaced. However, if the noise is coming from bearings or other areas, more extensive repairs may be required. Additionally, dust and other contaminants can enter the pump chamber, which can degrade pump performance.
If the vacuum pump won’t start, it could be a blown fuse or a power or voltage problem. Other common causes are flow restrictions or improper installation at the entrance. Also, the vacuum pump may be damaged or the capacitors may be of poor quality. It’s not always easy to tell if a vacuum pump is leaking oil, but a greasy transmission can indicate a vacuum pump failure.
A leaking vacuum pump can also hiss when the car’s engine is running. If you hear it, check the hoses and connections to make sure there are no leaks. A vacuum leak may indicate a faulty vacuum pump, so you need to replace it as soon as possible.
Checking end pressure is easy, but a pressure gauge can also serve as a sign. You can also check for pump vibration by running a short procedure. Excessive vibration can be subtle, but it can greatly affect your process. If you notice excessive pump vibration, you should contact a professional immediately.
Poor pump performance can cause many problems for your company. A bad vacuum pump not only wastes material, it also damages your tools and reputation.

China 78L/S Dry Screw Vacuum Pump Resistant Corrosion/Resistance to Water Vapor/ Used in Chemical Industry     vacuum pump design		China 78L/S Dry Screw Vacuum Pump Resistant Corrosion/Resistance to Water Vapor/ Used in Chemical Industry     vacuum pump design
editor by czh 2022-11-24

China Np-80 Np Vacuum Pump for Vapour Recovery System vacuum pump

Product Description

 

 

Detailed Photos

Technical Specification
Explosion-proof Sign Exd ‖ B T3 Gb
Voltage 36VDC
Flowrate 80L/min
Current 2A
Power 45w

The  Vapour Recovery Pumps are vacuum pumps with integrated flame arresters arranged on the inlet and outlet sides to suck off explosion –

capable fuel vapour/air mixtures into vapour recovery device s of dispensing devices at filling stations.

Features and Benefits:
Ø  Protection System – To prevent a flame breakthrough in deflagrations or stable detonations of explosion – capable vapour/air mixtures of explosion group in the case of ignition on the dispensing valve and the following subsequent max. hose and pipe length: gas return hose with an internal diameter < 10mm in a coaxial hose <6mm, or optionally coaxial hose <6mm with an outer diameter <38mm, together with a subsequent ID 15pipe (G 1/2")<3mm.
Ø  The gas temperature in the outlet line must not exceed 95° C±5° C.
Ø  For faultless function is necessary to keep the product clean.
Ø  Selective of Single pump head or double pump head.
Ø  100% Factory Tested

Product performance

1,Strong suction ability,under 45L/min refueling speed,keep the vapor liquid ratio not lower than stand requirement.

2,The pump’s start-stop control taken from the electromagnetic vlvo controller,control circuit simple and reliable.

3Transmission shaft and motor are connected directly,diversion can be arbitrarily,no need to judge motor steering

4.Self-lubricating soft piston,low noisy,stand wear and tear.

5,Die-cast aluminum alloy housing,compact structure.

6,Rational construction ,good resistance to gasoline,nice appearance.

Packaging & Shipping

 

Company Profile

ECO Scince and technology Co.,Ltd,was established in Dec.of 1998,we are professional manufacturer for fuel dispenser with 70 employees,and 15 technicians.We own various production equipment and detection equipment 45 sets.Machining center ,digital controlled lathe,straightener,polisher advanced equipment 20sets.Our machining workshop,assembly shop ,key components are all achieving self-sufficiency.
      High-tech,High level technological innovation,has provided a great conditions for develop new products. As far as now we have developed the overflow valve,breakaway valve,dull gas-oil recovery vacuum pump,NP oil-gas recovery vacuum pump,tubing flattener for oil fuel dispenser. We are supplier for zhengxing,yongbang,sanjin,jialijia,famous brand main engine plants.
      We always put quality at the first consideration,as well as continuous innovation,start with the details,scientific management methods are our policy,our high quality products has win a high degree of trust among our customers.We were rated as “outstanding supplier”by our customer.And were specified as there export products supplier.
       Quality first,customer first are our principle,we will keep forging ahead,expand a wider market.
 

1- Could you develop our own design?        
   Yes
2- Are you factory?                                                                
Yes
3- Can we visit your factory or show your facotry via internet?                                            
  Yes
4- Could you send the sample for testing?                  
  Yes
5- Could you offer door to door service?                        
 Yes

To Be Negotiated 1 Piece
(Min. Order)

###

After-sales Service: 24month
Warranty: 12month
Oil or Not: Oil Free
Vacuum Degree: Vacuum
Working Conditions: Dry
Motor Speed: 2820r/Min

###

Samples:
US$ 10/Piece
1 Piece(Min.Order)

|
Request Sample

###

Customization:

###

Technical Specification
Explosion-proof Sign Exd ‖ B T3 Gb
Voltage 36VDC
Flowrate 80L/min
Current 2A
Power 45w

###

To Be Negotiated 1 Piece
(Min. Order)

###

After-sales Service: 24month
Warranty: 12month
Oil or Not: Oil Free
Vacuum Degree: Vacuum
Working Conditions: Dry
Motor Speed: 2820r/Min

###

Samples:
US$ 10/Piece
1 Piece(Min.Order)

|
Request Sample

###

Customization:

###

Technical Specification
Explosion-proof Sign Exd ‖ B T3 Gb
Voltage 36VDC
Flowrate 80L/min
Current 2A
Power 45w

###

Vacuum Pump

Disadvantages of using a vacuum pump

A vacuum pump is a device that pulls gas molecules out of a volume and leaves a partial vacuum. Its main function is to create a relative vacuum within a given volume. There are several types of vacuum pumps. Some of them are better suited for specific purposes than others. However, there are some disadvantages to using a vacuum pump.

Application of vacuum pump

Vacuum pumps are invaluable tools in many industrial and scientific processes. They are often used to move gas and other harmful substances and to clear clogged drains. They are also used to support mechanical equipment. For example, they can be mounted on the engine of a motor vehicle or the power hydraulic component of an aircraft. No matter how they are used, they should fit the application.
The principle of a vacuum pump is to draw gas from a sealed chamber to create a partial vacuum. Over the years, vacuum pump technology has evolved from its original beginnings to its current form. Today, there are many types of vacuum pumps, including rotary vane pumps, momentum transfer pumps, and regeneration pumps.
The semiconductor industry is a major user of vacuum pumps. Among other applications, these pumps are commonly used for mounting circuit boards, securing components, blowing and jetting, and pumping. The use of renewable resources has paved the way for widespread semiconductor production, where vacuum pumps are crucial. This manufacturing shift is expected to boost vacuum pump sales across Europe.
Vacuum Pump
The most common types of vacuum pumps are positive displacement and rotary vane pumps. Positive displacement pumps are most effective for rough vacuum applications and are usually paired with momentum transfer pumps. These pumps are used in pharmaceutical, food and medical processes. They are also used in diesel engines, hydraulic brakes and sewage systems.
Positive displacement pumps are used to create low vacuum conditions and create a partial vacuum. These pumps create lower air pressure by enlarging the chamber and allowing gas to flow into the chamber. The air in the cavity is then vented to the atmosphere. Alternatively, momentum transfer pumps, also known as molecular pumps, use high-speed rotating blades to create dense fluids.
Vacuum Pump

Their drawbacks

Vacuum pumps are useful in industrial applications. However, they are not perfect and have some drawbacks. One of them is that their output is limited by the vacuum hose. Vacuum hoses are the bottleneck for vacuum pump performance and evacuation rates. The hose must be kept free of water and organic matter to ensure the highest possible vacuum.
Dry vacuum pumps do not have these problems. They may be more cost-effective but will increase maintenance costs. Water consumption is another disadvantage. When pond water is used, the pump puts additional pressure on the treatment facility. Additionally, contaminants from the gas can become trapped in the water, shortening the life of the pump.
Another disadvantage of vacuum pumps is their limited operating time at low vacuum. Therefore, they are only suitable for extremely high vacuum levels. Diaphragm pumps are another option for industrial applications. They have a sealed fluid chamber that allows a moderate vacuum. They also feature short strokes and a low compression ratio, making them quieter than their reciprocating counterparts.
Vacuum pumps are used in many industrial and scientific processes. They can be used to transport hazardous materials or clear clogged drains. They are also used in rear doors and dump tanks. Certain types of vacuum pumps can cause fluid blockages, which can be harmful. The vacuum pump should also be well suited to the fluid in it to avoid contamination.
Another disadvantage is the lack of proper vacuum system testing equipment. Mechanics often underestimate the importance of a properly functioning vacuum system. Most stores lack the equipment needed for proper troubleshooting. Typically, mechanics rely on the cockpit vacuum gauge to determine if the pump is working properly.
Some vacuum pumps are capable of providing constant vacuum. These pumps are also capable of eliminating odors and spills. However, these advantages are outweighed by some disadvantages of vacuum pumps.

China Np-80 Np Vacuum Pump for Vapour Recovery System     vacuum pump	China Np-80 Np Vacuum Pump for Vapour Recovery System     vacuum pump
editor by czh