Gas butterfly valve

Electro-hydraulic flanged butterfly valve is eccentric metal seal structure, sealing form is metal-to-metal seal, metal seal can be changed, stainless steel plate and graphite composite plate seal ring to metal seal. Hard seal butterfly valve drive form in addition to electric: electric, worm gear drive, pneumatic and so on. The butterfly plate of the multi-level hard sealed gas butterfly valve is installed in the diameter direction of the pipe. In the cylindrical channel of the butterfly valve body, the disc butterfly plate rotates around the axis, the rotation angle is between 0 °and 90 °, and when the valve is rotated to 90 °, the valve is fully open.     

Electro-hydraulic moving flange butterfly valve is eccentric metal seal structure, sealing form is metal-to-metal seal, metal seal can be changed, stainless steel plate and graphite composite plate seal ring to metal seal. In addition to electro-hydraulic drive, the drive form of hard sealed butterfly valve is electric, manual, worm gear drive, pneumatic and so on.