Can the Jiayuguan electric cut-off butterfly valve be powered off and closed? (9) If the electric on-off butterfly valve is not used for a short time, the asbestos packing should be taken out to prevent electrochemical corrosion and damage to the valve stem.
、 3. The sealing performance of the valve seat is good. The sealing ring made of elastic materials such as polytetrafluoroethylene is easy to seal, and the sealing capacity of the pneumatic ball valve increases with the increase of the medium pressure.
