Body material: ball iron, carbon steel, stainless steel.
Normal diameter :2 ~ 120(DN50 ~ DN3000).
End: round, flange, flange.
Pressure range :150 to 300 pounds (pn10-16).
Operation: wrench, gearbox, electric.
Working temperature: – 46 ℃ ~ + 200 ℃.
The soft seal butterfly valve is widely used in petroleum, chemical, metallurgy, hydroelectricity and other fields as a part of the pipe system and flow control. In the known butterfly valve technology, the sealing form is mostly sealed, the sealing material is rubber sealing butterfly valve, ptfe and so on. 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.