Unidirectional Seal Full Enclosed Medium Pressure Knife Gate Valve
Normal Size Range: 2"-60"
Normal Pressure Rating: PN10~PN16, CLASS150
Material: GG25,GG40,WCB, CF8,CF8M,CF3,CF3M
Operation: Handwheel, Pneumatic, Electric, Chainwheel. Lever
Seat: EPDM, Viton, Metal, PTFE, NBR
Temperature Range: -29~150Degree C
Standards compliance
Design and Manufacture: GB/T12237
Face to face(end to end): GB/T15188.2
Flanged connection: ANSI B16.5, GB/T 9113
Test and inspection: API 598, GB/T 13927
RTV VALVE QVY Series is a blade in valve’ packing, which will scrap dirty attached on knife and prevent dirty moving upward. There is a fully closed bonnet equipped with a flushing point, which will effectively prevent any leakage. This is packing and bonnet double sealing middle pressure knife gate valve.