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Bidirectional Knife Gate Valve Slurry Valve - China Suppliers and Factory for DN65-DN300 Manual Valve
Description
Designed specifically for tough industrial applications involving slurry, pulp, powder, and wastewater, the Knife Gate Valve features a compact structure and a sharp-edged gate that can slice through thick or solids-laden media. This makes it well suited for sectors such as mining, paper, chemical processing, and sewage treatment.
Durable Construction: Built with a one-piece body, a corrosion-resistant coating, and a blade made of stainless steel or alloy.
Efficient Design: Unidirectional shut-off design minimizes pressure loss while maintaining a reliable seal under demanding conditions.
Low Maintenance: Non-clogging construction and low operating torque make it ideal for limited access locations.
Actuation & Mounting: Available in manual handwheel, pneumatic, and electric actuation with wafer or lug-type flange mounting.
As a trusted valve manufacturer in China, we produce all knife gate valves in accordance with international standards such as DIN and ISO. Each valve is pressure-tested and inspected before shipment to ensure performance and reliability. Choose our knife gate valve to achieve smooth, safe, and efficient flow control in harsh industrial environments.
Standard Materials Of Main Parts
| NO | PART NAME | MATERIAL |
|---|---|---|
| 1 | Body | Ductile Iron |
| 2 | Oring | NBR |
| 3 | Sealing | NBR/EPDM |
| 4 | Disc | 316 |
| 5 | Packing | PTFE |
| 6 | Gland | WCB |
| 7 | Bolt | 201 |
| 8 | Nut/Bolt | 201 |
| 9 | Pin | 201 |
| 10 | Split pin | 200 |
| 11 | Yoke | A3 |
| 12 | Stem | 2cr13 |
| 13 | Yoke Head | WCB |
| 14 | Stem Nut | Brass |
| 15 | Bearing | Zchsnsb10-6 |
| 16 | Yoke head cap | WCB |
| 17 | Nut | 201 |
| 18 | Handwheel | Ductile Iron |
Dimensions (mm)
| DN | L | D | D1 | D2 | D0 | N-Th | d | H | H1 |
|---|---|---|---|---|---|---|---|---|---|
| 65 | 48 | 185 | 145 | 118 | 180 | 4-M16 | Ø18 | 335 | 415 |
| 80 | 51 | 200 | 160 | 132 | 220 | 8-M16 | Ø18 | 360 | 455 |
| 100 | 51 | 220 | 180 | 156 | 240 | 8-M16 | Ø18 | 400 | 515 |
| 125 | 57 | 250 | 210 | 184 | 240 | 8-M16 | Ø18 | 455 | 595 |
| 150 | 57 | 285 | 240 | 212 | 280 | 8-M20 | Ø23 | 510 | 675 |
| 200 | 60 | 340 | 295 | 266 | 300 | 12-M20 | Ø23 | 585 | 805 |
| 250 | 70 | 405 | 355 | 319 | 320 | 12-M24 | Ø27 | 695 | 965 |
| 300 | 76 | 460 | 410 | 370 | 320 | 12-M24 | Ø27 | 765 | 1085 |
Company Profile
Tianjin Guoji Valve Co., Ltd. is an export-oriented valve manufacturer with 15,332 square meter factory area, which has strong capability of R&D, Manufacture, Trading and Service. Now our company has passed the Lloyd's Register (LR) ISO9001: 2015 quality management system certification (ISO Approval number: ISO 9001 – 00033059) and CE/PED certification (EU Certificate Of Conformity). (Certificate No: 0343/PED/SHA/BJG00001668/A).
TGV's products covered Butterfly valves, Check valves, Strainers, Gate valves, Ball valves, Globe valves, Expansion joints, Flanges and Fittings with pressure range from 0.5 to 6.4 MPa, size from DN15 to DN3000. The products also have been widely exported to more than 30 countries and regions.
We aim at deliver only quality valves with professional services, we see quality and service as life and always take our reputation and promises seriously.
TGV's products covered Butterfly valves, Check valves, Strainers, Gate valves, Ball valves, Globe valves, Expansion joints, Flanges and Fittings with pressure range from 0.5 to 6.4 MPa, size from DN15 to DN3000. The products also have been widely exported to more than 30 countries and regions.
We aim at deliver only quality valves with professional services, we see quality and service as life and always take our reputation and promises seriously.
Frequently Asked Questions (FAQ)
What media are knife gate valves designed to handle?
Knife gate valves are specifically engineered for harsh industrial applications involving thick, viscous, or solids-laden media such as slurry, pulp, powder, and wastewater.
What actuation options are available for these valves?
We offer manual handwheel, pneumatic, and electric actuation configurations, allowing the valve to be operated either manually or integrated into remote control systems.
Which manufacturing standards do your knife gate valves comply with?
All of our knife gate valves are manufactured in accordance with international standards, specifically DIN and ISO, and every valve undergoes rigorous pressure testing before shipment.
What certifications does Tianjin Guoji Valve Co., Ltd. hold?
We hold Lloyd's Register (LR) ISO9001:2015 quality management system certification and EU CE/PED certification (Certificate No: 0343/PED/SHA/BJG00001668/A).
What sizes and pressure ranges are available for your valves?
Our valve range accommodates sizes from DN15 to DN3000 and supports pressure ranges spanning from 0.5 to 6.4 MPa.