What is the piston vacuum pump

Piston Vacuum Pump is a kind of variable capacity gas transmission pump. It has the advantages of good energy saving effect, high vacuum and large pumping capacity. In addition, compared with rotary pump, the durability of the slide valve pump has more advantages.

What is the piston vacuum pump:

Slide valve pumps have single-stage H-type, two-stage 2H-type slide valve vacuum pumps for the suction of air and other general gases, when the use of gas ballast, can also suck containing a small amount of palm condensable gases (such as water vapor). Additional devices should be used when sucking gases that contain excessive oxygen, are explosive, are corrosive to ferrous metals, and react chemically with vacuum oil.

Application range of piston vacuum pump:

This type of pump can be used alone, also can be used as diffusion pump, oil booster pump, roots pump and other high vacuum pump front pump, relative to rotary vane vacuum pump, H type slide valve pump is more durable, long service life. The pump is widely used in vacuum coating, vacuum heat treatment, vacuum sintering, molecular distillation and aviation simulation test.

piston pump

 piston vacuum pump of features:

After optimizing the design counterweight, the vibration is low and the noise is low. The bearing seal chamber is supplied separately and separated from the pump chamber to avoid impurities entering the bearing and premature damage. According to the user’s request, the auxiliary fuel tank can be attached to achieve the function of separating impurities from cooling vacuum oil. Except for the old H-150, the motors are placed above the pump, with compact structure and small floor area.

The main performance parameters of piston vacuum pump are as follows:

Model H-70 H-150 H-180 H-200 H-230 H-300
Pumping speed (L/S) 70 150 180 200 230 300
Ultimate pressure (Pa) 1 1 1 1 1 1
Pump rotary speed (rpm) 500 500 380 410 450 450
Suitable motor Power (KW) 5.5 15 15 15 18.5 22
Rotary speed(rpm) 1440 1440 1460 1460 1470 1470
Model Y132S-4 Y132M-4 Y160L-4 Y160L-4 Y180M-4 Y180L-4
Max. inlet pressure (Pa) 1.3X104
Max. Vapor Productivity


About 8.4
Cooling water

consumption (kg/h)

150 200 450 450 450 700
Lubricated oil Model 1# vacuum pump oil
Capacity (kg) 18 40 45 45 45 63
Dimension Inlet(mm) 80 100 160 160 160 160
Outlet(mm) 50 80 100 100 100 100
Length x width x height (mm) 650 X 630 X 1200 1010 X 680 X 1356 1140 X 940 X 1270 1140 X 940 X 1270 1140 X 940 X 1325 1140 X 1160 X 1325
Total weight (kg) 525 970 1155 1155 1155 1525


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