Pneumatic Knife Gate Valve
When your industrial system demands fast, reliable, and automated flow control, pneumatic knife gate valves provide efficient actuation for challenging media. Designed for slurries, powders, viscous fluids, corrosive liquids, and wastewater, our pneumatic knife gate valves combine durable construction with rapid, automated operation.
TOT pneumatic knife gate valves feature a sharp, blade-shaped gate that moves perpendicular to the flow, ensuring full bore flow and tight shut-off while enabling automated operation with compressed air actuators.
Pneumatic knife gate valves are ideal for systems requiring frequent cycling, remote control, or high-speed valve operation, providing precise control and minimal maintenance.
Made from high-quality stainless steel, carbon steel, or lined materials, these valves provide excellent corrosion and abrasion resistance while ensuring long-term reliability under pneumatic actuation.
Full Stainless Steel / Carbon Steel / Lined Body & Gate: Designed for durability and corrosion resistance in harsh industrial environments.
Customizable for Your Flow System: Face-to-face dimensions, flanges, and actuator specifications can be tailored to your project requirements.
Factory-Tested Before Delivery: Each valve undergoes hydrostatic and seat testing to meet international standards.
ISO, CE, and API Certified Manufacturing: Ensuring global-quality compliance and professional engineering.
Contact us today to optimize your automated flow system and reduce operational downtime.
Let’s Help You Specify the Right Knife Gate Valve
Be careful when choosing a new valve supplier, the disappointment of poor quality can last much longer than the joy of a low price!
Pneumatic Knife Gate Valve Data Sheet
| Parameter | Details |
|---|---|
| Body Material | Stainless Steel (SS304 / SS316) / Carbon Steel / Lined |
| Gate Material | Stainless Steel / Carbon Steel |
| Seat Options | EPDM, PTFE, Metal Seat |
| Packing | PTFE, Graphite, Braided Aramid |
| Pressure Rating | PN10 / PN16 / ANSI 150 |
| Face-to-Face | Customizable |
| Connection | Wafer / Lug / Flanged |
| Actuation | Pneumatic (Double-Acting / Spring-Return), Manual or Electric Backup |
How Our Pneumatic Knife Gate Valves Are Built for Performance
Full Bore Flow: Smooth, unobstructed flow minimizes pressure drop.
Razor-Sharp Gate: Blade gate slices through difficult media for reliable closure.
Corrosion- & Abrasion-Resistant: Stainless steel, duplex, or lined bodies protect against chemical and abrasive wear.
Multiple Actuation Options:
Pneumatic Double-Acting Actuator
Pneumatic Spring-Return Actuator
Manual Override (Handwheel or Chainwheel)
Resilient Seat Options: EPDM, PTFE, or metal-to-metal for tight sealing.
Zero Leakage: Gland packing, scraper rings, and optional O-rings ensure airtight sealing.
Why Choose Pneumatic Knife Gate Valves?
In automated systems where speed and reliability matter, pneumatic knife gate valves offer:
Rapid Operation: Pneumatic actuation ensures fast opening and closing cycles.
Remote Control: Operate valves from a central location with compressed air supply.
Reliable Shut-Off: Sharp blade gate provides tight sealing in slurry, powder, or viscous media.
Low Maintenance: Durable construction reduces service intervals.
Flexible Actuation: Available in double-acting or spring-return designs for different control strategies.
Available Sizes & Pressure Ratings
Size Range: DN50–DN1200 (2″–48″)
Pressure Class: PN10 / ANSI 150 / custom available
Temperature Range: Up to 250°C depending on seat, body material, and lining
Applications You Can Trust It In
Wastewater Treatment: Automated sludge and debris pipelines.
Mining & Minerals: Abrasive slurry pipelines with remote control.
Chemical Processing: Acid, alkali, and corrosive fluid pipelines.
Pulp & Paper: Fibrous slurry pipelines with high-frequency operation.
Power Plants: Ash-laden or chemical-laden fluid control.
Food & Beverage: Automated clean-in-place applications for non-abrasive media.
Optional Features for Enhanced Performance
Position Indicator: Remote feedback for SCADA/PLC integration
Pneumatic Control Panel: Centralized valve operation
Purge Ports: Flush sticky or viscous media
Extended Stem / Gearbox: For deep or difficult access
Dust Covers & Scrapers: Protect gate and sealing surfaces
* We are not just providing simple quotes but experts in selection, calculation, and drawing.
FAQ-Pneumatic Knife Gate Valve
A knife gate valve equipped with a pneumatic actuator for fast, automated opening and closing, ideal for remote or high-speed operations.
Slurries, powders, viscous fluids, corrosive chemicals, and wastewater.
The blade gate moves perpendicular to the flow, cutting through media while the pneumatic actuator ensures precise, rapid operation.
Yes — pneumatic valves can be connected to SCADA, PLC, or central control systems.
Routine inspection of actuator, gate, and seat; minimal maintenance for durable stainless steel or lined bodies.
Consider media type, valve size, pressure, temperature, and required actuator type. TOT provides expert guidance for selection.
