进口Y型止回阀，挡板式逆止阀原理慨述 Principle description

Y型止回阀（挡板式逆止阀）主要用于介质（水、气）单向流动的管道上 RETZ Y-type check valve (flapper check valve) is mainly used on pipelines with one-way flow of medium (water)

只允许介质（水）向一个方向流动，以防止发生介质（水）倒流引起事故，安装单向止回阀，解决水表空转现象  The medium (water) is only allowed to flow in one direction to prevent accidents caused by medium (water) backflow. A one-way check valve is installed to solve the problem of water meter idling

工作条件 Working conditions

口径范围：DN15至DN50  Diameter range: DN15 to DN50

工作压力:  16bar  Working pressure: 16bar

阀门材质：黄铜或不锈钢 Valve material: brass or stainless steel

工作温度：≤180℃ Working temperature: ≤ 180 ℃

可垂直水平安装，垂直安装介质必须有下向上 The valve can be installed vertically and horizontally, and the vertical installation medium must be downward and upward

阀体一体成型，抗压防爆，壁厚均匀，只进不出 The valve body is integrally formed, anti pressure and explosion-proof, with uniform wall thickness, which can only enter and exit

全流量、压损小、防水锤 Full flow, small pressure loss, waterproof hammer

阀瓣有弹性,密封性能好，启闭迅速，不易堆积杂务 The valve clack is elastic, with good sealing performance, quick opening and closing, and it is not easy to accumulate chores