Coal Gas Butterfly Valve
Special Butterfly Valve for Coal Gas – YONCO Welded Steel Series The YONCO Special Butterfly Valve for Coal Gas is purpose-built for the ventilation and gas […]
Special Butterfly Valve for Coal Gas – YONCO Welded Steel Series
The YONCO Special Butterfly Valve for Coal Gas is purpose-built for the ventilation and gas pipelines in the metallurgy, environmental protection, and chemical industries. Designed specifically to regulate and shut off dusty cold and hot gas flows, it features a centerline disc and a lightweight, tightly sealed welded steel structure. Unlike standard valves, its streamlined interior lacks exposed connecting rods and bolts, providing superior resistance against the corrosive and abrasive nature of industrial gases.
Core Features & Advantages
- Optimized for Dusty Gas: The internal structure is free of pins and bolts, preventing dust accumulation, corrosion, and internal jamming.
- Welded Steel Construction: Manufactured from welded steel plates, resulting in a compact, lightweight body that maintains high structural integrity.
- Advanced Bi-Directional Seal: Instead of multi-layer sealing rings, it utilizes an adjustable ring between the valve seat and pressure plate, achieving ideal bi-directional hard sealing.
- Low Operating Torque: Excellent flow regulation performance with low torque requirements, making it perfect for pneumatic or electric actuation.
- Quick Operation: Simple 90-degree fast open/close mechanism with minimal fluid resistance, ideal for frequent operation.
YONCO Gas Valve Selection Guide
Choosing the right damper or gas valve is critical for system safety. Here are our engineering guidelines:
- For Regulation Only: If zero leakage is not required (e.g., centrifugal fan inlets), standard regulating dampers or steel round dampers are recommended.
- For Absolute Isolation (Zero Leakage): Choose isolation dampers such as standard plug-in isolation gates, large gate doors, or double-peak louver dampers.
- For Coal Pulverizing Systems: Dedicated coal powder gate devices should be selected to isolate granular materials effectively.
- For Highly Abrasive Pipelines: For dust-laden pipelines prone to severe erosion, we recommend valves with wear-resistant ceramic lining or high-temperature anti-corrosion alloy spray coatings (extends lifespan by 4 to 5 times compared to standard 16Mn steel).
Technical Specifications
| Parameter | Details & Standards |
|---|---|
| Nominal Diameter (DN) | DN50 – DN1000 (2″ – 40″) |
| Nominal Pressure (PN) | PN10, PN16, PN25 (1.0 MPa – 2.5 MPa) |
| Design & Manufacture Standard | GB/T 12238-2008 (API/EN equivalent available) |
| Body Material | Welded Carbon Steel / Alloy Steel |
| Operation Type | Manual, Pneumatic, Electric Actuator |
| Applicable Media | Coal Gas, Blast Furnace Gas, Dusty Air, Flue Gas |
Safe Gas Handling with YONCO
Handling combustible and dusty gases requires specialized engineering. YONCO welded coal gas butterfly valves provide a safe, lightweight, and highly reliable alternative to traditional ball or gate valves in large-diameter ventilation systems. Contact our technical team today to discuss actuation options and wear-resistant coatings for your specific project.
