Detailed product description Butterfly valve High performace butterfly valve(triple offset butterfly valve) Manufacture standard: api609 Inspection and test: api598 Specifications: 1) pressure class: 150 - 300lbs 2) size: 2- 72" 3) temperature: -29ípc - 425ípc (wcb), -196ípc - 600ípc (ss) ía570ípc Alloy steel 4) suitable medium: water, oil, gas, vapor, steam etc. 5) body and disc material: wcb, cf3, cf8, cf3m, cf8m etc. 6) stem material: 410(1cr13), 420(2cr13), 304, 316, 304l, 316l, 38crmoala, 25cr1mov 7) packing: graphite 8) operating type: worm gear, pneumatic actuator Export standard case