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

QY

Unidirectional Seal Knife Gate Valve(No-Rising Stem Available)

Model:
QYZ73X/QYLZ73X
Working Pressure:
QY DN50-DN150 10kgs
DN200 8kgs
DN250-DN300 6kgs
DN350-DN400 5kgs
DN450-DN600 3kgs
DN700-DN1400 2kgs
QYL DN50-DN2000 16kgs
DN2200-DN3000 10kgs
Design Standard:
JB/T8691-2013
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:
F55, F53,2205, SS310, SS316L,SS316, SS304
Sealing Material:
NBR, EPD, FKM
Packing:
PTFE, Aramid packing, high water based , graphite
Applicable Medium:
Applicable for steam, sewage, high pressure pipes and so on.

QY Series is buried in valve’ body and completely isolated from the outside environment, it is suitable for installed with sewage pipes and keeps the valve body immersed in the liquid, if the gate is not isolated from the external environment, then the gate will soon be corrupted and influence its serving life. The sealing structure is that when knife is moving downward, its edge will press the wedge block and ensure the knife will be closed combined with seat seal, so as to achieve a sealing effect.




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CHISUN VALVE CO.,LTD.