Single-Stage best Rotary Piston Slide Valve Guiding Valve Spool Valve Backing Vacuum Pumps Manufacturer with ce certificate top quality low price

Product Description

Introduction of Rotary Piston Vacuum Pump

Here are two kinds of the rotary vacuum pump:
model H single-stage rotary piston vacuum pumps and model 2H double-stage rotary piston vacuum pumps.

Rotary piston vacuum pump is suitable for extracting air and other general gases. When use gas ballast, it can also extract a small amount of condensable gases (such as steam).

Additional devices shall be installed when extracting gases with high oxygen content, explosive, corrosive to ferrous metals and and When extracting gas that chemically reacts with vacuum oil.

This type of pump can be operated singly or as the CZPT stage pump of high vacuum pumps such as diffusion pump, oil booster pump and roots pump.

Compared with rotary vane vacuum pump, H-type slide valve pump is more durable and has a CZPT service life.


The pump is widely used in vacuum coating, vacuum heat treatment, vacuum sintering, molecular distillation and aviation simulation tests.


1. Optimized design of counterweight, has less vibration and low noise.

2. The bearing seal chamber supplies oil separately and is separated from the pump chamber, to avoid seal damage prematurely caused by impurities entering the bearing.

3. According to the user’s requirements,Auxiliary oil tank can be attached to cool the vacuum oil and separate impurities.

Parameter of Rotary Piston Vacuum Pump

Model Extreme pressure Geometric pumping speed Matched CZPT Diameter Cooling water consumption Weight
(Pa) (L/S) (KW) Inlet Outlet (Kg/h) (Kg)
2H-8 6×10-2 8 1.1 50 32 Air cooling 100
2H-15 15 2.2 65 32 Air cooling 140
2H-30A 30 4 63 50 100 370
2H-70AM 70 7.5 80 76 150 680
2H-120 120 11 120 80 200 980
2H-150 150 15 150 80 300 1100
H-30 1 30 3 80 G2″ Air cooling 180
H-150 150 15 150 80 200 850
H-150E 150 11 150 80 200 720
H-600 600 55 250 150 400 3200
H-8A 1.3 150 18.5 150 80 200 1960

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