Pneumatic knife gate valve
The Pneumatic Knife Gate Valve is engineered for slurry, pulp, and particle-laden fluids in industrial pipelines. Pneumatic actuation ensures rapid, effortless operation while maintaining tight shut-off. Constructed from corrosion- and abrasion-resistant materials, the valve provides long-term durability, low maintenance, and reliable performance in mining, chemical, wastewater, and pulp industries.
Pneumatic knife gate valve
Pneumatic Knife Gate Valves combine a sharp knife-edge gate with a pneumatic actuator, enabling automated on/off operation in abrasive or solid-laden pipelines. Suitable for medium- to large-diameter valves, the design ensures smooth flow, prevents clogging, and reduces operating torque.
Available in carbon steel, stainless steel, and alloy steel, the valves can be installed with flanged, wafer, or lug connections. OEM customization options include special materials, actuator types, gate and seat designs, and coatings for harsh operating conditions.
Pneumatic knife gate valve
| Parameter | Specification |
|---|---|
| Product Name | Pneumatic 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 Alloy, Wear-Resistant Steel |
| Seat Material | EPDM, NBR, PTFE, Metal Seat |
| Connection Type | Flanged, Wafer, Lug |
| Operation | Pneumatic Actuation, Manual Override |
| Temperature Range | -20°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, Abrasive Fluids |
Pneumatic knife gate valve
Automated control of abrasive slurries, tailings, and pulp pipelines.
Regulates sludge, wastewater, and chemical dosing pipelines.
Handles viscous and corrosive slurries in process pipelines.
Manages pulp stock, effluent, and processing slurry pipelines.
Controls dense, semi-solid industrial liquids in manufacturing plants.
Used in ash handling, cooling water, and condensate slurry systems.
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%.
