Flange butterfly valve

• Valve Body Material：A216/WCB,LCB/LF2,WC6/F11,WC9/F22,
  CF8/F304,CF3/F304L,CF8M/F316,CF3M/F316L
• Valve Caliber：2''~56''
• Pressure Range：Class 150~600LB
• Temperature Range： -29℃~425℃

Executive Standard

Manufacturing Standards: API 609,MSS SP-68,EN 593
Structure Length: API 609,MSS SP-68,EN 558
Flange End Surface: ASME B16.5,EN 1092,ASME B16.47
Test standard: ISO 5208，API598

Features

Flange three eccentric sealing butterfly valve, when the valve is fully open, the sealing surface of the disc will all deviate from the sealing surface of the valve seat. When the disc is open from 0 to 90 degrees, the sealing surface of the disc gradually leaves the sealing surface of the seat, the valve When the disc is opened from 90 to 0 degrees, the sealing surface of the disc gradually approaches the sealing surface of the seat, and then the pressure is closed and the valve is closed.