High temperature butterfly valve

High temperature butterfly valveWidely used in high-temperature gas pipelines in metallurgy, building materials, chemical industry, power plants, glass and other industries, as a regulating or cutting device for high-temperature gas medium flow, high-temperature butterfly valves can be used in conjunction with various actuators to form different performance equipment.

High temperature butterfly valveFeatures:

1. High temperature butterfly valves have the characteristics of simple structure, small volume, light weight, low material consumption, small installation size, fast opening and closing, 90 ° reciprocating rotation, and small driving torque. They are used to cut off, connect, and regulate the medium in pipelines, and have good fluid control characteristics and closing sealing performance.

2. It can transport mud with minimal liquid accumulation at the pipeline outlet. Under low pressure, good sealing can be achieved. Good regulation performance.

3. The streamlined design of the high-temperature butterfly plate reduces fluid resistance loss, making it an energy-saving product.

4. The valve stem is a through stem structure that has undergone quenching and tempering treatment, and has good comprehensive mechanical properties, corrosion resistance, and abrasion resistance. When the butterfly valve is opened and closed, the valve stem only rotates and does not move up or down. The packing of the valve stem is not easily damaged and the seal is reliable. Fixed with the butterfly plate cone pin, the extended end is designed to prevent the valve stem from bursting out in case of accidental breakage at the connection between the valve stem and the butterfly plate.

5. The connection methods include flange connection, clamp connection, butt welding connection, and lug clamp connection. The driving forms include manual, worm gear transmission, electric, pneumatic, hydraulic, electro-hydraulic linkage and other actuating mechanisms, which can achieve remote control and automated operation.

6. The valve seat sealing surface and butterfly plate sealing ring are both metal parts, which do not deform under thermal stress, ensuring fire safety.

7. The sealing ring of the high-temperature butterfly valve can smoothly detach from the sealing surface of the valve seat, rotate without friction, and is suitable for applications with frequent opening and closing.

8. Under the action of the driving device, the high-temperature butterfly valve achieves elastic sealing through torque, and the butterfly plate can tightly contact the valve seat, effectively ensuring the sealing pressure ratio and making it have bi-directional sealing and zero leakage performance.

9. Adopting pressure sealing and cam principle, even if the high-temperature butterfly valve is closed for a long time, there will be no jamming phenomenon when restarted. High temperature butterfly valves also have the functions of regulating flow, cutting off media, and bidirectional sealing. When there is a power outage or pipeline abnormality due to an accident, the sealing medium can be reversed.