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Full rubber lining butterfly valve structure characteristics and classification selection
Fully rubberized butterfly valve as a system used to achieve on-off and flow control system components, has been in the petroleum, chemical, metallurgical, hydropower and other fields have been extremely widely used. Fully rubberized butterfly valve disc installed in the pipe diameter direction. 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. The characteristics of the new high-life stainless steel butterfly valve and butterfly valve in the course of the existing problems At present, the full rubber-lined butterfly valve used as a system to achieve on-off and flow control of the components, has been in the petroleum, chemical, metallurgical, hydropower and many other areas Has been extremely widely used. In the well-known butterfly valve technology, the sealing structure adopts the sealing structure, the sealing material is rubber, polytetrafluoroethylene and the like. Due to the structural characteristics of the restrictions, do not meet the high temperature, high pressure and corrosion-resistant, anti-wear and other industries. A more advanced butterfly valve is a three-eccentric metal seal butterfly valve, the valve body and the valve seat as a single component, seat sealing surface layer surfacing temperature, corrosion resistant alloy material. Multi-layer soft stacked ring fixed to the valve plate, this butterfly valve compared with the traditional butterfly valve with high temperature, light operation, opening and closing without friction, closed with the torque of the transmission mechanism to compensate for increased sealing, improved butterfly valve The sealing performance and extend the service life of the advantages.