The telescopic welded bellows vacuum valve has the following

Writer： admin Time：2021-10-14 22:38 Browse：℃

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 main valves of Shanghai Shenhong Valve Co., Ltd. are: pressure reducing valve (gas pressure reducing valve, adjustable pressure reducing valve, bellows pressure reducing valve, piston type pressure reducing valve, steam pressure reducing valve, pilot pressure reducing valve, air Pressure reducing valve, nitrogen pressure reducing valve, water pressure reducing valve, self-operated pressure reducing valve, proportional pressure reducing valve), safety valve, heat preservation valve, cryogenic valve, ball valve, globe valve, gate valve, check valve, butterfly valve, filter Device, discharge valve, diaphragm valve, plug valve, plunger valve, balance valve, regulating valve, trap valve, pipe pinch valve, drain valve, exhaust valve, mud valve, pneumatic valve, electric valve, high pressure valve, medium Pressure valve, low pressure valve, hydraulic control valve, vacuum valve, rubber lined valve, fluorine lined valve. The most 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. Vacuum bellows globe valve with valve stem that moves linearly, which is widely used in vacuum valve. Gate valves are subject to greater restrictions, but for large diameters, ball valves, plunger valves and butterfly valves are also available. The plug valve used as a vacuum valve has not been promoted because the plug valve needs to be lubricated with oil, so that oil vapor may enter the vacuum system, which is not allowed."