Manual Handwheel Ceramic Slag Discharge Knife Gate Valve
Extreme Durability for High-Pressure, Corrosive Slurries
The Manual Handwheel Ceramic Slag Discharge Knife Gate Valve is a specialized, heavy-duty isolation valve engineered to survive in the most severe industrial applications, particularly those involving high-hardness particles and corrosive, abrasive media.
Unlike traditional metal valves, this design utilizes high-grade toughened structural ceramic materials for all selective components in contact with the media. This ensures exceptional chemical stability and extreme hardness, making the valve highly resistant to abrasion, corrosion, and erosion. It is the definitive choice for critical isolation points in high-pressure hydraulic coal transporting, slag and ash removal, and slurry pipelines. The compact structure and Manual Handwheel provide reliable, versatile control.
Key Features & Advanced Ceramic Performance
Media HandlingHigh-Hardness ParticlesSpecifically built to handle media containing high-hardness particles (maximum particle size <5mm) and soft but corrosive material.
| Feature Category | Technical Detail | Core Operational Benefit |
| Ultimate Resistance | Structural Ceramic Components | All wetted parts are made of high-grade ceramics, offering high mechanical strength and superior resistance to abrasion, corrosion, and scouring. |
| Flow Path | Unobstructed Full Circulation | The valve maintains full, unobstructed circulation when open, ensuring smooth passage of media and preventing material accumulation. |
| Thermal Properties | Good Heat Insulation & Thermal Shock Resistance | Low thermal expansion and excellent heat insulation allow the valve to maintain integrity across the specified temperature range. |
| Slag Management | Integrated Blowing Device | Features an internal blow device to actively resist media adhesion and jamming, ensuring a clean seal and low opening load. |
| Longevity | Long Service Life | The advanced ceramic seal provides high wear resistance and a long service life compared to conventional metal or polymer seals. |
Target Applications
This valve is essential for reliable isolation and on/off service in severe industrial environments, including:
- Mining & Coal Processing: Hydraulic coal transporting, slurry, and ash pipeline systems.
- Power Plants: High-pressure hydraulic slag and ash removal systems.
- Metallurgical Industry: Slag water and heavy abrasive media pipelines.
- Chemical Industry: Corrosive liquids or slurries containing hard particles.
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