Pneumatic Double Disc Knife Gate Valve: Ceramic-Lined for Superior Wear Resistance
The TOT Valve Pneumatic Double Disc Knife Gate Valve is a heavy-duty, wear-resistant solution designed to provide reliable on/off control in pipelines transporting highly abrasive or corrosive media. By utilizing advanced ceramic lining and a unique double-disc design, this valve offers exceptional longevity and sealing integrity where conventional metal valves fail quickly due to erosion.
Key Features and Advantages
| Feature | Design Detail | Benefit for Your Operation |
| Extreme Wear Resistance | Valve seat and valve plate made of Composite Engineering Ceramics (Hard Alloy Ceramic Lined). | Dramatically extends service life in abrasive applications (e.g., fly ash, slag, mining slurries), reducing replacement frequency and maintenance costs. |
| Superior Sealing | Double Disc configuration with precise ceramic seating surfaces. | Provides a robust, tight shut-off, minimizing leakage and ensuring process safety and efficiency. |
| Reliable Actuation | Equipped with a Pneumatic actuator. | Allows for fast, dependable remote operation and integration into automated control systems. |
| High-Performance Packing | Flexible Graphite packing material. | Ensures a reliable seal against external leakage, especially under moderate pressure and temperature variations. |
| Versatile Sizing | Port sizes ranging from DN50 to DN350mm. | Suitable for a wide range of industrial pipeline diameters and flow rates. |
Technical Specifications
| Parameter | Specification |
| Valve Type | Pneumatic Double Disc Knife Gate Valve |
| Port Size Range | DN50 – DN350mm |
| Power/Actuation | Pneumatic |
| Nominal Pressure | 1.0MPA |
| Sealing Surface (Seat) | Composite Engineering Ceramics (Wear-Resistant Hard Alloy Ceramic Lined) |
| Closure Component (Plate) | Composite Engineering Ceramics |
| Packing Material | Flexible Graphite |
| Typical Media | Ash, Slurries, Corrosive Liquids, Water Media |
Applications
This specialized ceramic-lined valve is ideally suited for severe-service flow isolation in industries including:
- Power Plants: Fly ash and bottom ash conveying systems.
- Mining & Mineral Processing: Slurry lines and tailings management.
- Wastewater Treatment: Abrasive sludge and grit handling.
- Chemical Processing: Transport of corrosive or highly particulate media.
Is your process costing you too much in valve replacements?
Upgrade to the durability of ceramic. Contact TOT Valve today to discuss your abrasive media control needs!
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