Installation method and size: a rubber flange duckbill valve, duckbill valve and one is made with a metal flange gasket can be naturally connected with the metal flange mounted directly on the tank, piping and cofferdam on. When joint interceptors duckbill valves, flanges and connecting flange dimensions correspond to join after securing an absolute guarantee seal embedded duckbill valve, but also be careful not to damage the rubber discharge check valve flanged lips. When you install a check valve, the flow direction of the medium should pay particular attention should be normal flow direction of the medium on the valve body indicates the direction of the arrow coincides with duckbill check valve, otherwise you will cut off the normal flow of the medium. Bottom valve should be installed at the bottom of the pump suction piping. When the valve is closed, will produce water hammer pressure in the pipeline, can cause serious damage to the valves, piping or equipment, especially for large mouth lines or high-pressure line, it should cause a high degree of attention to those who choose the check valve . Serco supply material (Figure), the role of the duckbill valve, duckbill valve provided by Serco Gongyi City Water Supply Materials Limited. "PTFE lined rubber joints, standard waterproof casing, duckbill valve, power connector, stainless steel rubber joints" preferred Serco Gongyi City Water Supply Materials Co., Ltd. (2), the company is located in: West Town Industrial Park, Henan Province, over the years, Serco supply materials to provide customers the best quality service, Contact: Zhang. Welcome to the new and old customers call, letter, visit the guide, business negotiations. Serco supply material expect to be your long term partner!