Bi-directional Sealing Knife Gate Valve1
Bi-directional Sealing Knife Gate Valve2
Bi-directional Sealing Knife Gate Valve3
Bi-directional Sealing Knife Gate Valve4

Bi-directional Sealing Knife Gate Valve

Size Range: DN50-DN300

Pressure: PN10/16/150LB

Body Materials: WCB/304/316

Seat Materials: EPDM

Disc Materials: 304/316

Stem Materials: 2Cr13


Knife gate valve is also known as knife gate valve, slurry valve, mud valve. Its opening and closing parts are gate. The movement direction of gate is perpendicular to the direction of the fluid. Depending on cutting fiber material blade shaped gate to cut off the medium. The gate board rises and falls in the side guide groove and is pressed on the seat by the bottom lug. If high medium sealing is needed, o-type sealing seat can be selected to achieve two-way sealing. Knife gate valves have small installation space, low working pressure, long service life, simple maintenance.

Suitable Medium:Water, mud, ash, slag and water mixture, etc.

Working Temperature: 0~80℃.

Application field:Coal mine, chemical industry, environmental protection, water treatment, water supply and drainage, etc.

Product Advantages

1. Precision casting valve body, fine appearance, no sand hole, traceable with Heat number.

2. Valve wedge is burnished smoothly 3 times and polished 5 times to ensure the sealing porformance.

3. Valve stem is equipped with bearing to reduce friction, increased service life.

4. Add steel wire to seat ring to ensure the strong conbation between valve seat and body.

5. 250 μm epoxy coating, it can effectively prevent corrosion and rust. 

6. Each valve will be made pressure test before leaving factory.


Bi-directinal Pressure Knife Gate Valve
Name 1-Body 2-Seat 3-Wedge 4-Stem 5-Handwheel
Material WCB/304/316 EPDM 304/316 2Cr13     DI
Size   PN10 PN16 150LB
DN NPS(Inch) L D1 N-M Z-φC D1 N-M Z-φC D1 N-M Z-φC
50  2'' 48 125 2-M16 2-φ18 125 2-M16 2-φ18 120.7 2-M16 2-19
65  2  1/2'' 48 145 2-M16 2-φ18 145 2-M16 2-φ18 139.7 2-M16 2-19
80  3'' 51 160 2-M16 6-φ18 160 2-M16 6-φ18 152.4 2-M16 2-19
100  4'' 51 180 2-M16 6-φ18 180 2-M16 6-φ18 190.5 2-M16 6-19
125  5'' 57 210 2-M16 6-φ18 210 2-M16 6-φ18 215.9 2-M20 6-22
150  6'' 57 240 2-M20 6-φ22 240 2-M20 6-φ22 241.3 2-M20 6-22
200  8'' 70 295 2-M20 6-φ22 295 4-M20 8-φ22 298.4 2-M20 6-22
250  10'' 70 350 4-M20 8-φ22 355 4-M24 8-φ26 361.9 4-M22 8-25
300  12'' 76 400 4-M20 8-φ22 410 4-M24 8-φ26 431.8 4-M22 8-25
350  14'' 76 460 6-M20 10-φ22 470 6-M24 10-φ26 476.2 4-M27 8-29
400  16'' 89 515 6-M24 10-φ26 525 6-M27 10-φ30 539.7 6-M27 10-29

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