Slag discharge gate valve
The Slag Discharge Gate Valve is designed for high-temperature, high-abrasion environments in power plants, metallurgy, and chemical industries. With robust cast steel or alloy construction, hard-faced sealing surfaces, and wear-resistant wedge design, it delivers reliable shut-off, smooth operation, and long-term durability even under extreme slurry and molten material conditions.
Slag discharge gate valve
Slag Discharge Gate Valves are engineered for handling molten slag, ash, sludge, and abrasive fluids in thermal power plants, metallurgical plants, cement factories, and chemical industries. Designed with wear-resistant materials and hard-faced sealing, they withstand high temperature, high pressure, and aggressive slurry conditions.
These valves are suitable for manual, gear-operated, or motorized operation, ensuring safe and reliable isolation of pipelines while minimizing maintenance and downtime.
Our Slag Discharge Gate Valves support full OEM and ODM services with customer-specific solutions.
Slag Discharge Gate Valves are manufactured under strict quality control systems and can be supplied with:
Slag discharge gate valve
| Parameter | Specification |
|---|---|
| Product Name | Slag Discharge Gate Valve |
| Standard | GB, API 600, JB/T |
| Size Range | DN50 – DN1500 |
| Pressure Rating | PN10 – PN40 / Class 150 – 600 |
| Working Temperature | 0°C – 570°C |
| Body Material | WCB, WC6, WC9, Alloy Steel, Stainless Steel |
| Disc Type | Flexible Wedge / Solid Wedge |
| Connection Type | Flanged, Butt Welded |
| Operation | Manual, Gear, Electric, Pneumatic |
| Sealing Surface | Hard-faced / Stellite Alloy |
| Applicable Media | Molten Slag, Ash, Slurry, Abrasive Fluids |
| Leakage Standard | API 598 / GB Standards |
| Design Life | 15+ Years |
| Testing Standard | API 598, GB/T 13927 |
Slag discharge gate valve
Handling ash, slag, and boiler bottom discharge systems.
Slag discharge from furnaces, smelters, and blast furnaces.
Clinker and ash discharge pipelines.
Slurry and abrasive fluid handling in high-temperature processes.
Tailings, slurry, and molten mineral discharge systems.
Ash and slag removal from incinerators.
High-abrasion slurry pipelines requiring wear-resistant isolation valves.
Material customization plan
Customized 316L stainless steel valves forGerman chemical enterprises. Resistant tostrong corrosion, suitable for their acidicmedium transportation systems, with aservice life extended to over 8 years.
Structural optimization design
For the Saudi desert project, the valve stemsealing structure was changed to a doublebellows design to address the leakage issuein the high-temperature and dustyenvironment, and it was highly recognizedby the customers.
Interface standard adaptation
Customized API 600 standard valves for acertain company in the United States. Theflange size is fully compatible with ANSIB16.5, ensuring zero error during on-siteinstallation and reducing the constructionperiod by 30%.
