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


2PC Body Bi-directional Seal Polyurethane Non-groove lining Knife Gate Valve

Working Pressure:
DN50-DN200 16kgs
DN250-DN600 10kgs
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:
F55, F53,2205, SS310, SS316L,SS316, SS304
Disc Material:
F55, F53,2205, SS310, SS316L,SS316, SS304
Sealing Material:
Improved polyurethane
PTFE, Aramid packing, high water based , graphite
Applicable Medium:
Applicable for mineral processing, sewage, tailings, slag, seawater, and other acid and alkali, wear, media conditions, such as cyclone.

QP 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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