Huadian pump valve production and sales of integrated flange high temperature ball valve (substitute ball valve), metal seal structure, sealing form for metal to metal seal, adjustable metal seal ring to metal seal, stainless steel plate and graphite composite plate sealing ring to metal seal. In addition to electric, the drive form of hard seal butterfly valve includes: manual, worm gear rod transmission, pneumatic, etc. The butterfly plate of the integrated high-temperature ball valve is installed in the diameter direction of the pipe. In the cylindrical channel of the hard-sealed ball valve body, the disc-shaped butterfly plate rotates around the axis, the rotation angle is between 0 ° ~ 90 °, and when the rotation reaches 90 °, the valve is fully open. Integrated high temperature ball valve new high-life stainless steel butterfly valve characteristics and butterfly valve in the use of problems in the process, at present, corrosion-resistant ball valve, hard seal butterfly valve as a component used to realize pipeline system on-off and flow control, has been widely used in petroleum, chemical, metallurgy, hydropower and many other fields. In the well-known butterfly valve technology, its sealing form mostly adopts a sealing structure, and the sealing materials are rubber, polytetrafluoroethylene, etc. Due to the limitation of the structural characteristics of ball valves, it is not suitable for high temperature resistance, high pressure, corrosion resistance, wear resistance and other industries.