Installation: straight-lift check valve should be installed in a horizontal pipeline rubber duckbill valve function, vertical lift check valves and foot valve is usually installed in a vertical pipeline rubber duckbill valve type, and bottom-up media flow. Swing Check Valve improper installation location restrictions, usually installed in a horizontal line, but can also be installed in vertical or inclined pipeline feeding the pipeline. Swing Check Valve improper installation location restrictions, usually installed in a horizontal pipeline duckbill valve manufacturer, but can also be installed in vertical or inclined pipeline feeding the pipeline. Mounting flange connection dimensions when installing a duckbill valve in line with national standards in order to meet the national standard duckbill valve, provides for the following 800 caliber duckbill valve flange standard GB of 10 kg of mixed bolt hole center distance and flange diameter over 800 diameter, taking into account the national standard flange bolt holes 6 kg and a diameter of center distance. Installation and size of a rubber flange, body and beak and metal flange gaskets made: You can connect with the natural metal flange mounted directly on the tank, piping and cofferdam. Installation and connection, flange and connecting flange dimensions corresponding to ensure the connection, guarantee seal, but be careful not to damage the discharge check valve rubber rim of the mouth. Duckbill valve installation method, Serco supply material (certified), 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!