Storage details of the telescopic welded bellows vacuum valv

Writer： admin Time：2021-10-14 22:20 Browse：℃

Storage details of the telescopic welded bellows vacuum valve The vacuum valve should be kept clean and stored in a dry room. Valves stored for a long time should be checked regularly to prevent moisture, rust and aging of the rubber ring. Before installation, the valve and vacuum pipeline contact sealing surface and each surface should be cleaned in accordance with the requirements of the vacuum standard. The flange connected with the valve must not have any protruding weld scars in the connecting hole, and the flange hole is chamfered. When the vacuum valve is installed, keep it concentric with the flanges on both sides. When the valve is not used for a long time and stored, the valve should be in a slightly open state. If the valve is reassembled after maintenance, it is subjected to vacuum performance test and helium gas test."