... made under ISO9001,CE ,API strictly Note: Flange Blow down valve as for the difference working condition, difference ... medium: water, Vapour, Oilsuitable temperature: ≤200Working Codition of Blow Down ValveWidely used for gas transmission pipeline, regulating station, ... valve, butterfly valve, globe valve, check valve, plug valves, control valves, etc. asthe leading valve product system, with a caliber ...