PZ643 Pneumatic knife gate valve
The Pneumatic Knife Gate Valve is designed for automated control of slurry, pulp, wastewater, and abrasive particulate pipelines. Its sharp knife-edge gate ensures efficient media cutting, minimizing clogging and wear. Pneumatic actuation provides fast, reliable operation with minimal maintenance, suitable for mining, cement, power generation, chemical, and bulk material handling industries.
Pneumatic knife gate valve
Pneumatic Knife Gate Valves integrate a precision-engineered knife-edge gate with a pneumatic actuator, enabling reliable, fast, and automated control of abrasive and viscous media. Full-port design reduces pressure drop while ensuring tight shut-off. The valve construction features wear-resistant materials for extended operational life, while actuator integration allows remote and PLC/DCS operation.
The valve is suitable for wafer, lug, or flanged connections and can be customized for various industrial requirements, including body and gate materials, actuator type, and sealing configuration.
Our Pneumatic Knife Gate Valves comply with international standards:
Pneumatic knife gate valve
| Parameter | Specification |
|---|---|
| Product Name | Pneumatic Knife Gate Valve |
| Nominal Size | DN50 – DN1200 (2" – 48") |
| Pressure Rating | PN6 – PN40 |
| ANSI Class | Class 125 – Class 300 |
| Body Material | Carbon Steel, Stainless Steel, Ductile Iron, Alloy Steel |
| Gate Material | SS304 / SS316, Alloy Steel, Hardfaced Steel |
| Seat Material | EPDM, NBR, PTFE, Metal Seat |
| Connection Type | Wafer, Lug, Flanged |
| Operation | Pneumatic Actuated |
| Stem Type | Rising Stem |
| Temperature Range | -20°C to +200°C |
| Sealing Type | Bidirectional / Unidirectional |
| Leakage Standard | API 598 / ISO 5208 |
| Design Standard | MSS SP-81 / API 609 |
| Applicable Media | Slurry, Pulp, Wastewater, Powder, Bulk Solids |
Pneumatic knife gate valve
Slurry handling, tailings discharge, ore pulp transport.
Fly ash, boiler ash, and industrial wastewater handling systems.
Pulp stock and paper mill slurry pipelines.
Corrosive slurry, abrasive powders, and solid-laden fluids.
Cement powder, granular materials, and silo discharge.
Sludge, effluent pipelines, and abrasive media control.
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%.
