China All Kinds of Vacuum Pump Accessories Avilable vacuum pump for ac

Product Description

All Kinds of Vacuum Pump Accessories Avilable

With Automatic high speed flow and compensation function   under the setting pressure.;Comparing with fixed displacement vane pump,;it has lower consumption and heat radiation;
Stable and noiseless in operation,;especially suitable for machine tool and accord to requirements of housed activities.;
It contains mechanical pressure adjustment;For an arbitrary choice

Specifications:;
1.;CE certificate
2.;LVD certificate
3.;For air conditionin
4.;Small,;light,;nicelooking.;
The vacuum pump is mainly applied in many fields,; such as refrigeration maintain,; printing machine,; medical equipment,; vacuum packing,; gas analyze and thermoplastic molding ect.;
Exact indication of internal system pressure on the vacuum gauge.; The vacuum gauge can equip on all models of vacuum pump.;

Technical parameters:;
Dual-Band Dual-Pressure Stage pump

Item NO.; VP215D VP225D VP235D VP245D VP260D VP280D VP21-803
Fax:;  -808
 

 

  
 
 

US $100-500
/ Piece
|
100 Pieces

(Min. Order)

###

Oil or Not: Oil
Structure: Rotary Vacuum Pump
Exhauster Method: Positive Displacement Pump
Vacuum Degree: Vacuum
Work Function: Maintain the Pump
Working Conditions: Dry

###

Customization:

###

Item NO. VP215D VP225D VP235D VP245D VP260D VP280D VP2100D
Flow Rate 50Hz 1.5CFM 2.5CFM 3.5CFM 4.5CFM 6CFM 8CFM 10CFM
42 L/min 70 L/min 100 L/min 128 L/min 170 L/min 226 L/min 283 L/min
60Hz 1.8CFM 3CFM 4CFM 5CFM 7CFM 9CFM 12CFM
50 L/min 84 L/min 114 L/min 142 L/min 198 L/min 254 L/min 340 L/min
Ultimate vacuum   3×10-1Pa 3×10-1Pa 3×10-1Pa 3×10-1Pa 3×10-1Pa 3×10-1Pa 3×10-1Pa
  20 microns 20 microns 20 microns 20 microns 20 microns 20 microns 20 microns
Power 1/4HP 1/3HP 1/3HP 1/2HP 3/4HP 1HP 1HP
Inlet Port 1/4"Flare 1/4"Flare 1/4"&3/8"Flare 1/4"&3/8"Flare 1/4"&3/8"Flare 1/4"&3/8"Flare 1/4"&3/8"Flare
Oil Capacity 180ml 280ml 350ml 340ml 600ml 600ml 700ml
Dimensions(mm) 260x122x220 270x122x220 320x134x232 320x134x232 370x140x250 370x140x250 390x140x250
Weight 6kg 7kg 10.5kg 11kg 15kg 15.5kg 16kg

###

Item NO. VP215(2VP-0.5) VP225(2VP-1) VP235(2VP-1.5) VP245(2VP-2) VP260(2VP-3) VP280(2VP-4) VP2100(2VP-5)
Flow Rate 50Hz 1.5CFM 2.5CFM 3.5CFM 4.5CFM 6CFM 8CFM 10CFM
42 L/min 70 L/min 100 L/min 128 L/min 170 L/min 226 L/min 283 L/min
60Hz 1.8CFM 3CFM 4CFM 5CFM 7CFM 9CFM 12CFM
50 L/min 84 L/min 114 L/min 142 L/min 198 L/min 254 L/min 340 L/min
Ultimate vacuum   3×10-1Pa 3×10-1Pa 3×10-1Pa 3×10-1Pa 3×10-1Pa 3×10-1Pa 3×10-1Pa
  20 microns 20 microns 20 microns 20 microns 20 microns 20 microns 20 microns
Power 1/4HP 1/3HP 1/3HP 1/2HP 3/4HP 1HP 1HP
Inlet Port 1/4"Flare 1/4"Flare 1/4"&3/8"Flare 1/4"&3/8"Flare 1/4"&3/8"Flare 1/4"&3/8"Flare 1/4"&3/8"Flare
Oil Capacity 180ml 280ml 350ml 340ml 600ml 600ml 700ml
Dimensions(mm) 260x122x220 270x122x220 320x134x232 320x134x232 370x140x250 370x140x250 390x140x250
Weight 6kg 7kg 10.5kg 11kg 15kg 15.5kg 16kg

###

 

Item NO. VP-8 VP-10
Flow Rate 50Hz 16CFM 20CFM
480 L/min 600 L/min
Ultimate vacuum   5Pa 5Pa
Power 0.75kw 1.1kw
Inlet Port Φ33mm Φ33mm
Oil Capacity 1000ml 900ml
Dimensions(mm) 580x350x430 580x350x430
Weight 45kg 47kg

###

Item NO. 2VP-8 2VP-10
Flow Rate 50Hz 16CFM 20CFM
480 L/min 600 L/min
Ultimate vacuum   3×10-2Pa 3×10-2Pa
Power 0.75kw 1.1kw
Inlet Port Φ33mm Φ33mm
Oil Capacity 900ml 800ml
Dimensions(mm) 580x350x430 580x350x430
Weight 52kg 54kg

###

Item NO. VP115(VP-1) VP125(VP-1.5) VP135(VP-2) VP145(VP-2.5) VP160
(VP-3)
VP180
(VP-4)
VP1100
(VP-5)
Flow Rate
 
50Hz 1.5CFM 2.5CFM 3.5CFM 4.5CFM 6CFM 8CFM 10CFM
42 L/min 70 L/min 100 L/min 128 L/min 170 L/min 226 L/min 283 L/min
60Hz 1.8CFM 3CFM 4CFM 5CFM 7CFM 9CFM 12CFM
50 L/min 84 L/min 114 L/min 142 L/min 198 L/min 254 L/min 340 L/min
Ultimate vacuum
 
  5Pa 5Pa 5Pa 5Pa 5Pa 5Pa 5Pa
  100 microns 100 microns 100 microns 100 microns 100 microns 100 microns 100 microns
Power 1/4HP 1/4HP 1/3HP 1/3HP 1/2HP 3/4HP 1HP
Inlet Port
 
1/4"Flare 1/4"Flare 1/4"Flare 1/4"Flare 1/4"&3/8"Flare 1/4"&3/8"Flare 1/4"&3/8"Flare
Oil Capacity
 
280ml 240ml 350ml 350ml 450ml 600ml 750ml
Dimensions(mm) 260x122x220 260x122x220 270x122x220 270x122x220 320x134x235 370x140x250 390x140x250
Weight 4.6kg 5kg 5.5kg 6kg 6kg 14kg 14.5kg

###

Item NO. VP-1SG VP-1.5SG VP-2SG VP-2.5SG VP-3SG VP-4SG VP-5SG
Flow rate 50Hz 1.5CFM 2.5CFM 3.5CFM 4.5CFM 6CFM 8CFM 10CFM
42 L/min 70 L/min 100 L/min 128 L/min 170 L/min 226 L/min 283 L/min
60Hz 1.8CFM 3CFM 4CFM 5CFM 7CFM 9CFM 12CFM
50 L/min 84 L/min 114 L/min 142 L/min 198 L/min 254 L/min 340 L/min
Ultimate vacuum   5Pa 5Pa 5Pa 5Pa 5Pa 5Pa 5Pa
  100 microns 100 microns 100 microns 100 microns 100 microns 100 microns 100 microns
Power 1/4HP 1/4HP 1/3HP 1/3HP 1/2HP 3/4HP 1HP
Inket Port 1/4"Flare 1/4"Flare 1/4"Flare 1/4"Flare 1/4"&3/8"Flare 1/4"&3/8"Flare 1/4"&3/8"Flare
Oil Capacity 280ml 240ml 350ml 350ml 450ml 600ml 750ml
Dimensions(mm) 260x142x220 260x142x220 270x142x220 270x142x220 320x154x235 370x160x250 390x160x250
Weight 5kg 5.4kg 5.9kg 6.4kg 6.4kg 14.4kg 14.9kg

###

Item NO. 2VP-0.5SG 2VP-1SG 2VP-1.5SG 2VP-2SG 2VP-3SG 2VP-4SG 2VP-5SG
Flow rate 50Hz 1.5CFM 2.5CFM 3.5CFM 4.5CFM 6CFM 8CFM 10CFM
42 L/min 70 L/min 100 L/min 128 L/min 170 L/min 226 L/min 283 L/min
60Hz 1.8CFM 3CFM 4CFM 5CFM 7CFM 9CFM 12CFM
50 L/min 84 L/min 114 L/min 142 L/min 198 L/min 254 L/min 340 L/min
Ultimate vacuum   3x10Pa 3x10Pa 3x10Pa 3x10Pa 3x10Pa 3x10Pa 3x10Pa
  20 microns 20 microns 20 microns 20 microns 20 microns 20 microns 20 microns
Power 1/4HP 1/3HP 1/3HP 1/2HP 3/4HP 1HP 1HP
Inket Port 1/4"Flare 1/4"Flare 1/4"&3/8"Flare 1/4"&3/8"Flare 1/4"&3/8"Flare 1/4"&3/8"Flare 1/4"&3/8"Flare
Oil Capacity 180ml 280ml 350ml 340ml 600ml 600ml 700ml
Dimensions(mm) 260x142x220 270x142x220 320x154x232 320x154x232 370x160x250 370x160x250 390x160x250
Weight 6.4kg 7.4kg 10.9kg 11.4kg 15.4kg 15.9kg 16.4kg
US $100-500
/ Piece
|
100 Pieces

(Min. Order)

###

Oil or Not: Oil
Structure: Rotary Vacuum Pump
Exhauster Method: Positive Displacement Pump
Vacuum Degree: Vacuum
Work Function: Maintain the Pump
Working Conditions: Dry

###

Customization:

###

Item NO. VP215D VP225D VP235D VP245D VP260D VP280D VP2100D
Flow Rate 50Hz 1.5CFM 2.5CFM 3.5CFM 4.5CFM 6CFM 8CFM 10CFM
42 L/min 70 L/min 100 L/min 128 L/min 170 L/min 226 L/min 283 L/min
60Hz 1.8CFM 3CFM 4CFM 5CFM 7CFM 9CFM 12CFM
50 L/min 84 L/min 114 L/min 142 L/min 198 L/min 254 L/min 340 L/min
Ultimate vacuum   3×10-1Pa 3×10-1Pa 3×10-1Pa 3×10-1Pa 3×10-1Pa 3×10-1Pa 3×10-1Pa
  20 microns 20 microns 20 microns 20 microns 20 microns 20 microns 20 microns
Power 1/4HP 1/3HP 1/3HP 1/2HP 3/4HP 1HP 1HP
Inlet Port 1/4"Flare 1/4"Flare 1/4"&3/8"Flare 1/4"&3/8"Flare 1/4"&3/8"Flare 1/4"&3/8"Flare 1/4"&3/8"Flare
Oil Capacity 180ml 280ml 350ml 340ml 600ml 600ml 700ml
Dimensions(mm) 260x122x220 270x122x220 320x134x232 320x134x232 370x140x250 370x140x250 390x140x250
Weight 6kg 7kg 10.5kg 11kg 15kg 15.5kg 16kg

###

Item NO. VP215(2VP-0.5) VP225(2VP-1) VP235(2VP-1.5) VP245(2VP-2) VP260(2VP-3) VP280(2VP-4) VP2100(2VP-5)
Flow Rate 50Hz 1.5CFM 2.5CFM 3.5CFM 4.5CFM 6CFM 8CFM 10CFM
42 L/min 70 L/min 100 L/min 128 L/min 170 L/min 226 L/min 283 L/min
60Hz 1.8CFM 3CFM 4CFM 5CFM 7CFM 9CFM 12CFM
50 L/min 84 L/min 114 L/min 142 L/min 198 L/min 254 L/min 340 L/min
Ultimate vacuum   3×10-1Pa 3×10-1Pa 3×10-1Pa 3×10-1Pa 3×10-1Pa 3×10-1Pa 3×10-1Pa
  20 microns 20 microns 20 microns 20 microns 20 microns 20 microns 20 microns
Power 1/4HP 1/3HP 1/3HP 1/2HP 3/4HP 1HP 1HP
Inlet Port 1/4"Flare 1/4"Flare 1/4"&3/8"Flare 1/4"&3/8"Flare 1/4"&3/8"Flare 1/4"&3/8"Flare 1/4"&3/8"Flare
Oil Capacity 180ml 280ml 350ml 340ml 600ml 600ml 700ml
Dimensions(mm) 260x122x220 270x122x220 320x134x232 320x134x232 370x140x250 370x140x250 390x140x250
Weight 6kg 7kg 10.5kg 11kg 15kg 15.5kg 16kg

###

 

Item NO. VP-8 VP-10
Flow Rate 50Hz 16CFM 20CFM
480 L/min 600 L/min
Ultimate vacuum   5Pa 5Pa
Power 0.75kw 1.1kw
Inlet Port Φ33mm Φ33mm
Oil Capacity 1000ml 900ml
Dimensions(mm) 580x350x430 580x350x430
Weight 45kg 47kg

###

Item NO. 2VP-8 2VP-10
Flow Rate 50Hz 16CFM 20CFM
480 L/min 600 L/min
Ultimate vacuum   3×10-2Pa 3×10-2Pa
Power 0.75kw 1.1kw
Inlet Port Φ33mm Φ33mm
Oil Capacity 900ml 800ml
Dimensions(mm) 580x350x430 580x350x430
Weight 52kg 54kg

###

Item NO. VP115(VP-1) VP125(VP-1.5) VP135(VP-2) VP145(VP-2.5) VP160
(VP-3)
VP180
(VP-4)
VP1100
(VP-5)
Flow Rate
 
50Hz 1.5CFM 2.5CFM 3.5CFM 4.5CFM 6CFM 8CFM 10CFM
42 L/min 70 L/min 100 L/min 128 L/min 170 L/min 226 L/min 283 L/min
60Hz 1.8CFM 3CFM 4CFM 5CFM 7CFM 9CFM 12CFM
50 L/min 84 L/min 114 L/min 142 L/min 198 L/min 254 L/min 340 L/min
Ultimate vacuum
 
  5Pa 5Pa 5Pa 5Pa 5Pa 5Pa 5Pa
  100 microns 100 microns 100 microns 100 microns 100 microns 100 microns 100 microns
Power 1/4HP 1/4HP 1/3HP 1/3HP 1/2HP 3/4HP 1HP
Inlet Port
 
1/4"Flare 1/4"Flare 1/4"Flare 1/4"Flare 1/4"&3/8"Flare 1/4"&3/8"Flare 1/4"&3/8"Flare
Oil Capacity
 
280ml 240ml 350ml 350ml 450ml 600ml 750ml
Dimensions(mm) 260x122x220 260x122x220 270x122x220 270x122x220 320x134x235 370x140x250 390x140x250
Weight 4.6kg 5kg 5.5kg 6kg 6kg 14kg 14.5kg

###

Item NO. VP-1SG VP-1.5SG VP-2SG VP-2.5SG VP-3SG VP-4SG VP-5SG
Flow rate 50Hz 1.5CFM 2.5CFM 3.5CFM 4.5CFM 6CFM 8CFM 10CFM
42 L/min 70 L/min 100 L/min 128 L/min 170 L/min 226 L/min 283 L/min
60Hz 1.8CFM 3CFM 4CFM 5CFM 7CFM 9CFM 12CFM
50 L/min 84 L/min 114 L/min 142 L/min 198 L/min 254 L/min 340 L/min
Ultimate vacuum   5Pa 5Pa 5Pa 5Pa 5Pa 5Pa 5Pa
  100 microns 100 microns 100 microns 100 microns 100 microns 100 microns 100 microns
Power 1/4HP 1/4HP 1/3HP 1/3HP 1/2HP 3/4HP 1HP
Inket Port 1/4"Flare 1/4"Flare 1/4"Flare 1/4"Flare 1/4"&3/8"Flare 1/4"&3/8"Flare 1/4"&3/8"Flare
Oil Capacity 280ml 240ml 350ml 350ml 450ml 600ml 750ml
Dimensions(mm) 260x142x220 260x142x220 270x142x220 270x142x220 320x154x235 370x160x250 390x160x250
Weight 5kg 5.4kg 5.9kg 6.4kg 6.4kg 14.4kg 14.9kg

###

Item NO. 2VP-0.5SG 2VP-1SG 2VP-1.5SG 2VP-2SG 2VP-3SG 2VP-4SG 2VP-5SG
Flow rate 50Hz 1.5CFM 2.5CFM 3.5CFM 4.5CFM 6CFM 8CFM 10CFM
42 L/min 70 L/min 100 L/min 128 L/min 170 L/min 226 L/min 283 L/min
60Hz 1.8CFM 3CFM 4CFM 5CFM 7CFM 9CFM 12CFM
50 L/min 84 L/min 114 L/min 142 L/min 198 L/min 254 L/min 340 L/min
Ultimate vacuum   3x10Pa 3x10Pa 3x10Pa 3x10Pa 3x10Pa 3x10Pa 3x10Pa
  20 microns 20 microns 20 microns 20 microns 20 microns 20 microns 20 microns
Power 1/4HP 1/3HP 1/3HP 1/2HP 3/4HP 1HP 1HP
Inket Port 1/4"Flare 1/4"Flare 1/4"&3/8"Flare 1/4"&3/8"Flare 1/4"&3/8"Flare 1/4"&3/8"Flare 1/4"&3/8"Flare
Oil Capacity 180ml 280ml 350ml 340ml 600ml 600ml 700ml
Dimensions(mm) 260x142x220 270x142x220 320x154x232 320x154x232 370x160x250 370x160x250 390x160x250
Weight 6.4kg 7.4kg 10.9kg 11.4kg 15.4kg 15.9kg 16.4kg

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 All Kinds of Vacuum Pump Accessories Avilable     vacuum pump for ac	China All Kinds of Vacuum Pump Accessories Avilable     vacuum pump for ac
editor by czh 2022-12-07