Body Material: Carbon steel, Stainless steel, Alloy steel.
Normal diameter: 2″~24″ (DN50~DN600).
End connection: Wafer, Lug, Flanged.
Pressure range: 150lbs~300lbs(PN16~PN25).
Operation: Wrench, Gearbox, Electric.
Working temperature: -46℃~+200℃.
Pneumatic head has single action and double action.
At present, the soft seal butterfly valve is used as a part of pipeline system and flow control, which has been widely used in petroleum, chemical, metallurgy, hydroelectric and other fields. In the known butterfly valve technology, the sealing form is mostly sealed, and the sealing material is rubber and ptfe. Due to the limitation of structural features, it is not suitable for high temperature, high pressure, corrosion resistance and abrasion resistance. One of the more advanced butterfly valves is a three-eccentric metal hard seal butterfly valve, the body and the seat are joined together, the seat seal surface layer surfacing welding resistance, corrosion resistant alloy material. Multilayer soft fold type sealing ring is fixed on the valve plate, the butterfly valve and the traditional butterfly valve compared with high temperature resistant, convenient operation, opening and closing without friction, closed as the actuator torque increases to compensate for sealing, improve the butterfly valve sealing performance and prolong the service life of the advantages.