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Check the pressure relief valve before installation
The author: Time:2020/11/6

        减压阀安装前应根据下述条件全部检查合格后进行安装。
        1.通过检查管道试压及冲洗记录,确定供水管网试压和冲洗合格。
        2.对照图纸,通过观测检查和手扳检查,确定减压阀规格和型号与设计相符。阀外控制管路及导向阀各连接件不应有松动。外观应无机械损伤,并应清除阀内异物。
        3.观测检查减压阀水流方向是否与供水管网水流一致,进水侧应安装过滤器,并宜在其前后安装控制阀。可调式减压阀宜水平安装,阀盖应向上。比例式减压阀宜垂直安装。当水平安装时,单呼吸孔减压阀其孔口应向下,双呼吸孔减压阀其孔口应呈水平位置。安装自身不带压力表的减压阀时,应在其前后相邻部位安装压力表。
 

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