用途及特点：微阻缓闭止回阀用于给排水管道,安装在水泵出口处用来防止介质逆流和消除***性水锤,并能有效地减少阀门关闭水锤压力,可保障管网安全运行.它具有阀瓣轻、开度大、节电效果显著，流体阻力小，水锤消除机构设计新颖，密封性能稳定可靠、耐磨损、使用寿命长、运行平稳、无振动、无噪声等特点。主要零部件材料：零件名称阀体、阀盖阀瓣阀轴材料灰铸铁橡胶组合件不锈钢主要外形尺寸：通径40506580100125150200250300350400450500600700800L20023029031035040048050060070080090010001100130014001500H3003003203543503805005806707308209209501100120015501700B22027029030032034041045055058063070080090099011201300)