Knife gate valve
The Knife Gate Valve is designed for demanding industrial applications involving slurries, viscous fluids, and corrosive media. Its sharp, hardened gate slices through solids for smooth operation. Constructed with corrosion-resistant materials, it ensures tight sealing, low friction, long service life, and easy maintenance in water treatment, mining, chemical, and pulp industries.
Knife gate valve
The Knife Gate Valve is a full-port valve optimized for thick liquids, slurries, and semi-solid fluids. The sharp-edged gate enables cutting through solids to maintain uninterrupted flow. Its robust body and resilient seat materials provide durable sealing under high abrasion and corrosive conditions. Available in manual, pneumatic, or electric operation, it is widely used in industrial pipelines requiring full bore flow and low-pressure drop.
Knife gate valve
| Parameter | Specification |
|---|---|
| Product Name | Knife Gate Valve |
| Nominal Size | DN50 – DN1200 (2" – 48") |
| Pressure Rating | PN10 – PN40 |
| ANSI Class | Class 150 – Class 300 |
| Body Material | Carbon Steel, Stainless Steel, Alloy Steel, Ductile Iron |
| Gate Material | Stainless Steel, Hardfaced Steel, Alloy Steel |
| Seat Material | Resilient Rubber / Metal Seat |
| Connection Type | Flanged, Wafer, Lug, Butt Weld |
| Operation | Manual, Electric, Pneumatic |
| Temperature Range | -46°C to +250°C |
| Sealing Type | Bi-directional / Uni-directional |
| Leakage Standard | API 598 / ISO 5208 Class A |
| Design Standard | API 609, ASME B16.34 |
| Applicable Media | Slurry, Pulp, Wastewater, Chemicals, Viscous Fluids |
Knife gate valve
Controls sludge, wastewater, and chemical dosing pipelines.
Handles abrasive slurries, tailings, and pulp.
Regulates corrosive or viscous liquids in process pipelines.
Used in pulp stock, paper mill effluent, and process pipelines.
Controls dense, semi-solid industrial liquids in manufacturing plants.
Applied in ash handling, cooling water, and condensate pipelines.
Material customization plan
Customized 316L stainless steel valves forGerman chemical enterprises. Resistant tostrong corrosion, suitable for their acidicmedium transportation systems, with aservice life extended to over 8 years.
Structural optimization design
For the Saudi desert project, the valve stemsealing structure was changed to a doublebellows design to address the leakage issuein the high-temperature and dustyenvironment, and it was highly recognizedby the customers.
Interface standard adaptation
Customized API 600 standard valves for acertain company in the United States. Theflange size is fully compatible with ANSIB16.5, ensuring zero error during on-siteinstallation and reducing the constructionperiod by 30%.
