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.
The knife gate valves can be used in various applications, including powder conveying pipeline systems, pipeline slurry transportation system, and sewage conveying systems.
- 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.
| 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 |
| 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 |
| 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 |
With our dedicated workshop and exceptional mold casting capabilities, we have the confidence to fulfill your requirements for knife gate valves.
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.
Our steel blades, designed for cutting solids or heavy materials, are specially crafted to retain their sharp edges over extended periods of use.