升降式止回阀◆产品型号：H41H◆产品报价：【产品概述】H41H升降式止回阀是一种阀瓣沿着阀体垂直中心线滑动的止回阀，只能安装在水平管道上，高压小口径的止回阀阀瓣可采用圆球形，H41H止回阀的阀体形状与截止阀一样（可与截止阀通用），因此它的流体阻力系数较大，但密封性较旋启式好。【结构图】【H41H升降式止回阀安装尺寸】(GB16.0MPa)DN1520253240506580100125150200250300L130150160180200230290310350400480600650750H9095100105110115140170200230260290290300Wt14151617181924294072104180180230【H41H升降式止回阀安装尺寸】(GB10.0MPa)DN1520253240506580100125150200250300L130150160180200230290310350400480600650750H9095100105110115140170200230255285290300Wt1415161718192429405883100105110【H41H升降式止回阀安装尺寸】(GB6.4MPa)DN3240506580100125150200250300L230260300340380430500550600775900H160170170190205230265310350480520Wt122029354768100142195250300【H41H升降式止回阀安装尺寸】(GB4.0MPa)DN3240506580100125150200250300L180200230290310350400480600650750H120140150160175200225260315320300Wt9121520334173104147180230【H41H升降式止回阀安装尺寸】(GB2.5MPa)DN1520253240506580100125150200250300L130150160180200230290310350400480600650750H9095100105110115140170200230260285290300Wt14151617181924294072104145180230【H41H升降式止回阀安装尺寸】(GB1.6MPa)DN1520253240506580100125150200250300L130150160180200230290310350400480600650750H9095100105110115140170200230255285290300Wt1415161718192429405883100105110)