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ANSI&DIN Knife Gate Valve

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ANSI&DIN   Knife Gate Valve

Applicable Standards

Knife Gate Valve, MSS SP-81
Steel Valves, ASME B16.34
Face to face MSS SP-81
End Flanges EN 1092-1/ASME B16.5/ASMEB16.47
Inspection and test MSS SP-81
Material: cast steel, stainless steel, special alloy, CI, DI etc
Size Range: DN50~DN1000
Pressure Rating: ASME CL, 150, PN10,PN16
Temperature Range: 0℃~120℃


Casting: (GGG40, GGG50, A216 WCB, A351 CF3, CF8, CF3M, CF8M, A995 4A, 5A, A352 LCB, LCC, LC2) Monel, Inconel, Hastelloy,UB6

Design Features:

Knife Gate Valve which makes it one of the best abrasive resistant materials. Our  Knife Gate Valve  is full lined with high quality urethane, which far exceeds the wear-life of gum rubber and any other softer liner, or sleeve materials.

1.Zero leakage. Full lined urethane valve body and molded elastomer gate seal prevents leakage permanently both the valve sealing and the valve body itself during working.

2.Extended wear-life. High quality abrasive resistant urethane liners, and robust stainless knife gates as well as the unique design of the valve itself provide an extremely long service life.

3.Bi-directional shut-off. When back flow happens NSW can be used as a preventer as well.

4.Self-flushing design. During valve closing the beveled knife gate redirects flowing slurry towards the beveled urethane liner seat, develops turbulence and intensifies the flow then flushes the slurry out of the bottom of the urethane as the gate settles into the seat.

5.Convenient rebuilds. When finally rebuilds are necessary, the wear-parts (urethanes, gate seals, knife gates) can all be replaced in field. Valve bodies and other parts are reusable.


1.Liners. Varieties of urethanes are available.

2.Gates. SS304 gates with hard chromium coated are standard. Other alloys are available (SS316, 410, 416, 17-4PH…) Optional gate coatings are also available.

3.PN10, PN16, PN25, 150LB, are available.

4.Optional actuators are available.


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