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

HomeProductsKnife Gate ValveUnidirectionalQV SeriesQV

QV

Unidirectional Seal Knife Gate Valve/Heavy Seat Replaceable

Model:
QVZ73X
Working Pressure:
DN50-DN100 16bar
DN125-DN200 10bar
DN250-DN400 7bar
Design Standard:
MSS SP-81
Flange Standard:
DIN PN10,PN16,150LB, JIS 10K, TABLE E/D
Face to Face:
MSS SP-81
Testing Standard:
API-598
Operation:
handwheel, electric, pneumatic, hydraulic, sprocket, electro-hydraulic, gear, lever
Main Material:
F55, F53, 2205, CF3M, CF8M, CF8, WCB, GGG40
Disc Material:
F55, F53, 2205, SS310, SS316L, SS316, SS304
Sealing Material:
NBR, EPDM, PTFE,FKM, Graphite
Packing:
Aramid fiber, high-water based fiber, rubber, PTFE, graphite
Applicable Medium:
Applicable for coal in power plant, slag discharge, sewage treatment, food, paper making, medicine, petroleum and chemical industry, water, Oil,steam, connecting or cutting grout, gold powder, ores, slag. coal, pulp, wood pulp, tailings, fibers, dust, chemicals, sewage treatment, sedimentation tanks, asphalt, bunker export, fruit juices, cereals, slaughter plant waste and other media. Epecially used for mining in electricity plant
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Detailed Introduction

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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