Features H type pump is another vacuum equipment which can suck off the normal gas or the gas mixed with little vapour(use the air brake valve when it's running),also the non-dustgas.It can be used ...

The design of WSSR Series Rotary Piston Vacuum Pump is as like Figure1-1(a), there are composed of the rotor made as eccentric shape, the slide pin, the exhaust valve and the front, back cover. When...