Compared with the positive pressure valve, the telescopic we

Writer： admin Time：2021-10-14 22:43 Browse：℃

Compared with the positive pressure valve, the telescopic welded bellows vacuum valve has the following characteristics: the pressure is lower than the atmospheric pressure, and the pressure drop on the valve flap cannot exceed 1 kgf/cm2. The working temperature of the medium depends on the process of using the device. The temperature generally does not exceed the range of -70 ~ +150℃. The basic requirement for this type of valve is to ensure a high degree of sealing of the connection and the compactness of the structure and gasket material."