The exhaust valve
plate of rotary vane vacuum pump is made of rubber pad. The exhaust valve plate
needs to be immersed in the pump oil. During the exhaust process of vacuum pump,
compressed air pushes open the valve plate, and the gas passes through the valve
plate and exhausts. The vacuum pump oil plays a sealing role. Generally
speaking, the valve plate is used to block the small hole on the disc when the
vacuum pump is working. If it is broken, the small eye of the vacuum pump will
leak all the time when the vacuum pump is pumping, which will not achieve the
effect, and the vacuum degree will be reduced.
Some users don't like to
install the valve at the suction port of the vacuum pump. They think that the
vacuum pump can work well without the valve. The exhaust valve is the working
part in the pump. The negative pressure of the system makes the valve plate in a
tight state all the time, so the valve plate is easy to be strained, so that the
service life of the pump is greatly reduced, and at the same time, the
maintenance cost is not small. This problem can be avoided by installing a valve
in the suction port.
Water Ring Vacuum Pump Dry
Scroll Vacuum Pump industrial vacuum pumps,vacuum furnaces
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