6 Inch Stainless Steel Pneumatic Knife Gate Valve with Air Cylinder Actuator
6 Inch Stainless Steel Pneumatic Knife Gate Valve with Air Cylinder Actuator
6 inch stainless steel pneumatic knife gate valve with air cylinder actuator, reliable shut-off and corrosion resistance for slurry, mining and wastewater systems.
Technical Specifications
| Size Range | DN15 to DN1000 (1/2″ to 40″) |
| Body Material | Cast Iron, Carbon Steel(WCB), Stainless Steel(CF8, CF8M) |
| Disc Material | WCB、Cast Iron, Stainless Steel(CF8, CF8M) |
| Stem Material | Stainless Steel (CF8, CF8M) |
| Sealing Material | PTFE |
| Connection Type | Flanged Type, Lug Type, Wafer Type (GB/ANSI/JIS/DIN) |
| Pressure Rating | 300PSI |
| Temperature Of Medium | -30°C to 300°C (-86°F to 572°F) |
| Optional Accessories | Solenoid Valve, Positioner, Limit Switch, F.R.L., Manual Device |
| Applicable Medium | Mud, Material, Viscous, Granular Fluid |
| Applications | Wastewater Treatment, Mining, Pulp & Paper, Chemical Processing, etc |
| Series | AT | AW | Linear | Pneumatic Cylinder | Sanitary |
|---|---|---|---|---|---|
| Valve Body | Ball valve, butterfly valve, plug valve | Gate valve, Global valve | Knife gate valve | Sanitary butterfly valve | |
| Function | Double Acting, Single Acting (Failure Resetting FO or FC) | ||||
| Control Accessories | • Solenoid Valve, Filter Regulator Lubricator (F.R.L.), Positioner, Limit Switch, Handwheel • Solenoid Valve & Positioner are with Explosion-proof grade and Signal Feedback type for choice |
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| Operating Medium | Clean and dry or lubricated air or inert gas. Any non-corrosive gas that is compatible with the internal parts of the actuator and the lubricant. The dew point temperature of the operating medium is -20°C, and the size of impurity particles is no more than 30u. When selecting a positioner, the impurity particle size should be no more than 5u. |
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| Air Source Pressure | 3bar to 8bar | ||||
| Operating Environment Temperature | • Standard type: -20°C to +80°C • Low-temperature type: -40°C to +80°C • High-temperature type: -20°C to +160°C |
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| Lubrication | Under normal operating conditions, the standard type does not require additional lubricant. For low-temperature or high-temperature environments, special lubricants are required. |
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Product Benefits & Features
1. Efficient Shut-Off for Slurry & Particulate Media
Knife gate structure provides reliable cutting and shut-off performance for slurry, powder, and solid-containing media
Smooth flow passage minimizes blockage and material accumulation
Suitable for mining, wastewater, pulp & paper, and chemical industries
Stable sealing performance under continuous operating conditions
2. Pneumatic Actuation for Fast & Responsive Control
Air cylinder pneumatic actuator enables quick opening and closing operation
Stable pneumatic control improves automation efficiency and operational reliability
Suitable for frequent cycling and industrial automation systems
Optional accessories available for remote and intelligent control integration
3. Stainless Steel Construction & Corrosion Resistance
Stainless steel valve body offers strong corrosion and abrasion resistance
PTFE / EPDM sealing materials ensure reliable shut-off and long service life
Suitable for corrosive, abrasive, and high-moisture industrial environments
Designed for stable operation in demanding process conditions
4. Compact Structure & Easy Maintenance
Lightweight and compact structure simplifies installation and transportation
Simple internal design reduces maintenance complexity and downtime
Easy disassembly improves servicing efficiency
Long service life with reduced operating and maintenance cost
Why Choose Fleyenda Valve Manufacturing
Product Stability
We use reinforced structures and precision sealing to ensure consistent performance under pressure and temperature changes.
Conpany&Product Certification
We have CE, RoHS, ISO, SIL, TUV, and IP68 waterproof certifications covering safety, quality, and environmental standards.
Projects Experience
Cooperated over 40 countries, we have experience in oil & gas, energy, water, chemicals, food & beverage, and automation.
Customization Capability
With 20 years experience, we turn complex working conditions into precise valve solutions with high speed and accuracy.
Aftersales Support
•We have technical team provides real-time video support to help customers resolve on-site issues quickly.
Customer Cases
Trusted by Shell plc, Petronas, Chevron, TotalEnergies, and Dupont in projects across 40+ countries.
Our Product Actual Export Pictures
