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


Unidirectional Seal Knife Gate Valve/Heavy Seat Replaceable

Working Pressure:
DN50-DN100 16kgs
DN125-DN200 10kgs
DN250-DN400 7kgs
DN450-DN600 5kgs
DN650-DN750 4kgs
DN800-DN900 3kgs
DN1000 2kgs
Design Standard:
Flange Standard:
Face to Face:
GB/T15188.2-94 chart6-7
Testing Standard:
Manual, electric, pneumatic, hydraulic, chain, electro-hydraulic, gear
Main Material:
Disc Material:
F55, F53,2205, SS310, SS316L,SS316, SS304
Sealing Material:
NBR ,EPDM, FKM, PTFE, Metal to Metal
PTFE, Aramid packing, high water based , graphite
Applicable Medium:
Applicable for sugar, paper, sewage, tailings, slagging, and other general

QV 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. This valve is a costeffective.

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