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Overview of a hard-sealing butterfly valve
Sealing butterfly valve for the eccentric metal seal structure, the sealing form of metal-to-metal seal, metal seal can be exchanged for the metal seal, stainless steel plate and graphite composite plate seal on the metal seal. The form of hard seal butterfly valve drive in addition to electric : Manual, worm gear transmission, pneumatic and so on. This type of valve in the pipeline should be generally horizontal installation. The butterfly valve with hard sealing butterfly valve is installed in the diameter direction of the pipe. In the butterfly valve body cylindrical channel, the disc-shaped disc rotates about the axis, the rotation angle is between 0 ° ~ 90 °, when rotated to 90 °, the valve is fully open state card.