UL/FMFIG.073U铸铁升杆式闸阀FIREPROTECTIONGATEVALVEULListedFMApproved,Outsidescrewandyoke,Solidwedgedisc.零件PART材质MATERIAL阀体BODYCASTIRON阀盖BONNETCASTIRON阀盘DISCCASTIRON阀座环SEATRINGCASTBRONZE阀杆STEMSTAINLESSSTEEL尺寸221/234681012L178190203229267292292292H34539246054576196511801375D152178191229279343406483D1180180220250300350410410注：单位mm标称压力试验压力(水压)NominalPressures:175PSI阀体阀座法兰规格：ANSICLASS12525kgf/cm225kgf/cm2)