Knife Gate Valve
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Knife Gate Valve

Knife gate valve is a stainless steel gate valve equipped with a sharp cutting tool designed for handling viscous, heavy fluids, or other abrasive media. Its simple design and easy-to-operate valve arrangement make it an ideal choice for sewage treatment plants, cement factories, and mining facilities.

Applications

The knife gate valves can be used in various applications, including powder conveying pipeline systems, pipeline slurry transportation system, and sewage conveying systems.

Basic Information
Size Range
DN50-DN800
Temperature Range T
0-100℃
Maximum Allowable Operating Pressure PN
1.0-1.6Mpa
Pressure Rating
1.5-2.4Mpa (Shell)
1.1-1.76Mpa (Seal)
Applicable Media
Powder, slurry, sewage and so on.
Materials
No. Part Materials No. Part Material
1 Valve Body Stainless Steel, Cast Steel 5 Valve Handwheel WCB
2 Valve Disc Stainless Steel 6 Bolts 45#, Stainless Steel
3 Valve Seat FTFE, Fluoroelastomer, Stainless Steel, Carbon Steel 7 Gland Stainless Steel, Cast Steel
4 Valve Stem 2Cr13 8 Packing Graphite
Specifications
Specifications
Size L ØD ØD1 ØD2 H n-Ød (PN10) n-Ød (PN16) D0
DN50 50 100 125 160/165 285 4-Ø18 4-Ø18 180
DN65 50 120 145 180/185 298 4-Ø18 4-Ø18 200
DN80 50 135 160 195/200 315 8-Ø18 8-Ø18 220
DN100 50 155 180 215/220 365 8-Ø18 8-Ø18 240
DN125 58 185 210 245/250 400 8-Ø18 8-Ø18 280
DN150 58 210 240 280/285 475 8-Ø22 8-Ø22 300
DN200 70 265 295 335/340 540 8-Ø22 12-Ø22 320
DN250 70 320 350/355 390/405 630 12-Ø22 12-Ø26 360
DN300 76 368/375 400/410 440/460 780 12-Ø22 12-Ø26 400
DN350 90 428/436 460/470 500/520 885 16-Ø22 16-Ø26 450
DN400 100 482/485 515/525 565/580 990 16-Ø26 16-Ø30 500
DN450 100 532/548 565/585 615/640 1100 20-Ø26 20-Ø30 550
DN500 115 585/608 620/650 670/715 1200 20-Ø26 20-Ø33 600
DN600 115 685/718 725/770 780/840 1450 20-Ø30 20-Ø36 700
DN700 160 788/800 840/840 895/910 1700 24-Ø30 24-Ø36 700
DN800 190 899/905 950/950 1010/1025 2000 24-Ø33 24-Ø39 700
Certifications
Item Standard
Design & Manufacture GB12238-89
Face to Face Dimension GB12221-2005
Flange Connection GB9113-2000
Valve Test JB/T 9092-1999
Valve Supply Requirements GB12220-89
Expertise and Superior Casting

With our dedicated workshop and exceptional mold casting capabilities, we have the confidence to fulfill your requirements for knife gate valves.

Corrosion Resistance and Durability

We meticulously choose materials and employ contemporary designs that render our knife gate valves exceptionally resistant to the corrosive effects of acids, particularly when dealing with viscous substances.

Long-Lasting Cutting Blades

Our steel blades, designed for cutting solids or heavy materials, are specially crafted to retain their sharp edges over extended periods of use.
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