What is a Butterfly Valve? Functions, Uses & High-Temperature
What is a Butterfly Valve?A butterfly valve is a type of quarter-turn valve featuring a circular disc (the "butterfly") as its closing element. This disc rotates around a central axis within the pipe to regulate or completely stop fluid flow. Primarily, it serves two critical functions in pipeline systems: shut-off and throttling (flow control). The main Butterfly Valve product names of China Butterfly Valve Network include:Butterfly Valve, shut-off and throttling, worm gear actuator, high-temperature resistance, carbon steel valve body, metal sealing rings, welded steel plate construction, industrial applications
How Does It Work?The disc is mounted on a rod (valve stem). When the valve is open, the disc aligns with the direction of flow, offering minimal resistance. Rotating the disc by 90 degrees positions it perpendicular to the flow, effectively closing the valve. Typically, less than a 90-degree rotationis needed to move from fully open to fully closed.
Key Features & EnhancementsSince the disc and stem lack a self-locking mechanism, a worm gear actuatoris often added. This device not only allows the disc to lock at any intermediate positionfor precise flow control but also significantly improves operational ease and control accuracy.
Industrial Applications & SpecificationsIndustrial-grade butterfly valves are engineered for demanding conditions. Key characteristics include:
1.High-Temperature Resistance:Suitable for extreme heat environments.
2.Wide Pressure Range:Operates effectively across various pressure levels.
3.Large Diameter Availability:Designed for high-flow applications with large nominal diameters (DN).
4.Robust Construction: Often features a carbon steel valve body and durable metal sealing ringsinstead of rubber, ensuring longevity under harsh conditions like those found in flue gas systems, smoke ducts, and gas pipelines.
Large, high-temperature models are frequently welded steel plate constructions, making them ideal for handling hot media in power generation, chemical processing, HVAC, and water treatment industries.
In summary, with their simple design, quick operation, and adaptability, butterfly valves remain a preferred and reliable solution for efficient fluid control across numerous industrial sectors.Do you still need to know or purchase the following Butterfly Valve products:
- Electric Single Eccentric Wafer Butterfly Valve
- Electric Soft-sealed Flange Butterfly Valve
- Electric Speed Control Butterfly Valve
- Electric Vacuum Butterfly Valve
- Electric Ventilation Butterfly Valve
- Electric Serrate Regulate Butterfly Valve



