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


Bi-directional Seal Knife Gate Valve/Disc Through Type

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, PTFE, Metal to Metal
PTFE, Aramid packing, high water based , graphite
Applicable Medium:
Applicable for paper, asphalt, tailings, slagging, cement, slime, dust, Solid Particles, deslagging and so on.

QC Series No groove bi-directional seal knife gate valve, cast iron body with the over all structure knife gate valve, including valve’ body, gate, and U-shaped flexible seal at the bottom of the body with grooves. When the valve is closed, the bottom of the gate edge contact with the seal and then compress the seal into the groove in the body and sealed gate realization; when the gate opens, separate gate from the bottom edge of the seal, seal will bounce to same level as groove, which will prevent the media sediment accumulated in the body cavity of the groove, no clogging, no residue, pipe easy to clean, so as to effectively improve the sealing effect knife gate valve to prevent leakage when the valve is closed.

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