Pneumatic Knife Gate Valve
When your application demands fast, reliable automated control with consistent performance, a pneumatic knife gate valve delivers exceptional speed and precision in flow management. This advanced pneumatic knife gate valve is engineered for applications requiring rapid response — whether you’re controlling batch processes, emergency shut-off systems, or automated production lines where millisecond timing is critical. The high-performance pneumatic actuator ensures quick operation even under high differential pressures, while maintaining the superior cutting action of our proven knife gate design. With fail-safe positioning and robust pneumatic control, it provides dependable automated service in demanding industrial environments where manual operation is impractical or unsafe.
Ready to achieve fast, automated control in your critical process applications? Contact us today for a pneumatic solution engineered for your specific automation requirements. Let TOT Valve automate your operations with proven pneumatic reliability.
The TOT Valve You Can Depend On – Pneumatic Automation When Speed and Precision Matter
When your process requires rapid response, remote control, or integration with automated systems, you need the superior performance of our pneumatic knife gate valve. With high-torque pneumatic actuators, this knife gate valve provides fast operation, precise positioning, and exceptional reliability — all while maintaining the reliable cutting action that makes knife gates ideal for challenging media.
The pneumatic operation design provides instant response and consistent performance throughout the valve’s service life, making it the preferred choice for automated process control and safety systems.
Why Pneumatic Knife Gate Valve Works for You?
pneumatic knife gate valve features
- High-torque pneumatic actuator provides reliable operation under maximum differential pressure
- Fast operating speeds with typical cycle times of 15-30 seconds for full stroke
- Fail-safe operation with spring return or double-acting configurations available
- Precise position control with optional positioner feedback for modulating service
- Air consumption optimization minimizes compressed air usage and operating costs
- Corrosion-resistant actuator with epoxy coating and stainless steel components
- Knife-edge gate cuts through fibrous materials, settled solids, and viscous media efficiently
- Remote operation capability enables control from safe distances or control rooms
- Emergency shut-off ready provides rapid closure for safety applications
- Multiple signal options (4-20mA, digital, pneumatic) for process integration
- Explosion-proof designs available for hazardous area installations
Pneumatic Knife Gate Valve Main Technical Specifications & Performance
Fast Automated Operation, High-Performance Pneumatic Technology, Knife Gate Valve
| Specification | Details |
|---|---|
| Design & Manufacturing Standard | MSS SP-81, AWWA C515, ISA-75 |
| Size Range | DN50 to DN1200 mm; NPS 2″-48″ (Customized to Your Request) |
| Pressure Ratings | PN6, PN10, PN16, ANSI 150Psi, 5K/10K, etc. |
| Working Pressure Classification | DN50–DN300: 16Bar; DN350–DN500: 10Bar; DN600–DN800: 6Bar; DN900–DN1200: 4Bar |
| Operating Time | 15-60 seconds full stroke (depending on size and actuator) |
| Air Supply Pressure | 4-7 Bar (60-100 PSI) standard, up to 10 Bar available |
| Face-to-Face Standard | MSS SP-81, AWWA C515 |
| Flange Connection Standards | GB/T9113–2010, EN1092–2002, ASME B16.5–2013, ASME B16.47–2011, AS2129–2000, AS4087–2004, JIS B2220–2004 |
| Testing Standard | MSS SP-81, API 598, EN 12266-1, IEC 60534 |
| Body Materials | WCB, CF8, CF3, CF8M, CF3M, 4A, 5A, 904L |
| Temperature Range | -20°C to +150°C (standard), up to +200°C with high-temp actuators |
| Actuator Types | Spring Return, Double Acting, Scotch Yoke, Rack & Pinion |
| Control Standards | ISA-75, IEC 60534, NEMA 4X, IP67 |
| Applications | Process Automation, Emergency Shut-off, Batch Control, Safety Systems |
| Control Options | On/Off, Modulating, Fail-Safe Close, Fail-Safe Open |
pneumatic knife gate valve components
Pneumatic Knife Gate Valve Main Components and Materials
| Part Name | Material Options | ||
|---|---|---|---|
| WCB | CF8 | CF8M | |
| Valve Body | WCB | CF8 | CF8M |
| Gate | 304SS | 316SS | 316L |
| Seat | EPDM/Metal | EPDM/Metal | EPDM/Metal |
| Actuator Body | Aluminum | Aluminum | 316SS |
| Piston | Aluminum | Aluminum | 316SS |
| Cylinder | Aluminum | Aluminum | 316SS |
| Springs | Carbon Steel | 316SS | 316SS |
| Stem | 2Cr13 | 316SS | 316L |
| Coupling | 304SS | 316SS | 316L |
| O-rings | NBR | NBR/EPDM | EPDM/Viton |
| Air Connections | Brass/SS | 316SS | 316SS |
| Position Indicator | Aluminum | Aluminum | 316SS |
| Solenoid Valve | Aluminum | 316SS | 316SS |
| Limit Switches | Aluminum | Aluminum | 316SS |
| Mounting Bracket | Carbon Steel | 304SS | 316SS |
| Fasteners | A193-B7 | A4-70 | A4-80 |
Advanced Pneumatic Actuation Technology
High-Torque Output: Optimized actuator sizing provides reliable operation at maximum differential pressure
Fast Response Time: Engineered for rapid valve cycling in emergency and process applications
Fail-Safe Design: Spring return or stored energy systems ensure safe valve position on air failure
Air Consumption Efficiency: Optimized cylinder volume minimizes compressed air requirements
Position Feedback: Multiple feedback options including limit switches, proximity sensors, and positioners
Environmental Protection: Weather-resistant construction with IP67/NEMA 4X ratings available
TOT Valve Tailored for Your Pneumatic Automation Applications – Complete Control Systems
You can customize this pneumatic knife gate valve for your exact automation requirements:
Actuator Types:
- Spring Return: Fail-safe close or fail-safe open operation with stored energy backup
- Double Acting: Maximum torque output for high-pressure applications
- Scotch Yoke: High-torque design for large valves and extreme service
- Rack & Pinion: Compact design with excellent modulating capability
Control Options:
- On/Off Control: Simple open/close operation with limit switch feedback
- Modulating Control: Precise positioning with electronic or pneumatic positioner
- Emergency Shut-off: Fast-closing actuators for safety applications
- Remote Control: Integration with DCS, PLC, and SCADA systems
Accessories & Options:
- Solenoid Pilot Valves: 24VDC, 115VAC, 230VAC with explosion-proof options
- Position Feedback: Limit switches, proximity sensors, 4-20mA position transmitters
- Air Treatment: Filter regulators, quick exhaust valves, speed controls
- Manual Override: Emergency manual operation capability
pneumatic knife gate valve performance
Operating Speed & Performance Data
| Valve Size | Actuator Type | Operating Time (sec) | Air Consumption (L/cycle) | Max Torque (Nm) |
|---|---|---|---|---|
| DN50-80 | Spring Return | 8-15 | 15-25 | 200-500 |
| DN100-150 | Spring Return | 12-20 | 25-45 | 500-1000 |
| DN200-300 | Double Acting | 15-30 | 45-85 | 1000-2500 |
| DN350-400 | Scotch Yoke | 20-40 | 85-150 | 2500-5000 |
| DN450-600 | Scotch Yoke | 30-60 | 150-300 | 5000-10000 |
Control Integration & Automation
Signal Compatibility: 4-20mA, 0-10V, digital fieldbus protocols (HART, Profibus, Foundation Fieldbus)
Control Accuracy: ±1% positioning accuracy with electronic positioners
Response Speed: Linear response characteristics for precise process control
Safety Integration: SIL-rated designs available for safety instrumented systems
Network Ready: Smart positioners with diagnostic capabilities and predictive maintenance
Explosion Protection: ATEX, IECEx, FM, CSA approvals for hazardous areas
Performance Advantages & Testing
Rapid Emergency Response: Fast-closing capability for safety shut-off applications
Consistent Operation: Pneumatic power provides uniform operation regardless of operator fatigue
Remote Operation: Safe control from control rooms or hazardous area boundaries
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