ASTM Butterfly Valve

type flanged / wafer / lug / triple eccentric size 50-2000 mm/ 2"-80" body ductile iron / wcb / cf8 / cf8m disc ductile iron / wcb / cf8 / cf8m / al bronze seat ptfe / rptfe / epdm / buna n / viton / ss304+graphite stem 17-4-ph ss astm a564 type 630 / astm a479 ss410 operation lever gearbox / pneumatic / electric actuator temperature (-)40°c to (+)200°c (for soft seated valves) (-)100°c to (+)600°c (for metal seated valves) pressure asme class 150 / 300 / 600 /