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90 series of various electric, pneumatic, manual valves,
etc.More than 8700 specifications and varieties

QB

Unidirectional Seal Knife Gate Valve/Light Seat Replaceable

Model:
QBZ73X
Working Pressure:
DN50-DN100 16kgs
DN125-DN200 10kgs
DN250-DN400 7kgs
DN450-DN600 5kgs
DN650-DN750 4kgs
DN800-DN900 3kgs
DN1000 2kgs
Design Standard:
MSS SP-81
Flange Standard:
GB/T9113.1-2010
Face to Face:
GB/T15188.2-94 chart6-7
Testing Standard:
GB/T13927-2008
Operation:
Manual, electric, pneumatic, hydraulic, chain, electro-hydraulic, gear
Main Material:
F55.F53.2205.CF3M.CF8M.CF8.WCB.GGG40
Disc Material:
SS316L,SS304
Sealing Material:
NBR ,EPDM, FKM, PTFE, Metal to Metal
Packing:
PTFE, Aramid packing, high water based , graphite
Applicable Medium:
Suitable for general purpose
QB Series Knife gate valve is with replaceable rubber seal knife gate structure, its sealing principle is mainly by closely connection between gate and rubber seals. Its main characters is that
the rubber sealing ring is set in seat’groove and is locked by metal seat, which will prevent rubber seal off when opening and closing the valve. If the seal is broken, you can remove the metal
seat and replace the rubber seal, which will greatly improve valve’ working efficiency. This valve is a cost-effective, high-performance products. The series of knife gate valve can be equipped
with pneumatic actuators, in order to meet the requirements of different industrial and mining use.






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CHISUN VALVE CO.,LTD.