UL/FMFIG.473U-炮金铜升杆式闸阀FIREPROTECTIONGATEVALVEULListedFMApproved,Outsidescrewandyoke,Solidwedgedisc,Threadedends.零件PART材质MATERIAL阀体BODYCASTBRONZE阀盖BONNETCASTBRONZE阀杆STEMBRASS阀盘DISCCASTBRONZE紧迫PACKINGGRAPHITE尺寸1/23/4111/411/22L596173798490H128145163189213248H1146167192226259304D15.82025324050注：单位mm标称压力试验压力(水压)NominalPressures:175PSI阀体阀座25kgf/cm225kgf/cm2)