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Description
Overview:
Vacuum gate valve by ordinary gate valves modified manually, the difference is that the vacuum packing seal gate valves equipped with a vacuum sealing ring, have since the expansion pressure effect.Better than ordinary gate valves of the gas seal performance.Vacuum gate valve is closed, sealing surface can only rely on medium pressure to seal, that depend on medium pressure, the disc will be to the other side of the valve seat sealing surface pressure to ensure that the seal face seal, this is the seal.Most is adopt compulsory seal gate valve, the valve is closed, to rely on outside force forced the ram pressure to the seat, to ensure the sealing surface sealing.
Valve body, gate, valve cover:WCB,Cr5Mo.
Packing:Flexible graphite
Packing pad:AL
Valve stem nut:ZCuA110Fe3
valve stem:1Cr13
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ZheJiang Hisun Automation Instrument Co.,Ltd
power plant valve,power station valve.butt welding valve
Address: He yi Industrial Zone,Oubei Town,
WenZhou, ZheJiang
China, 325105
Tel: 0086-577-57789961
Fax: 0086-577-67985602
