Features: 100% full rubber structure, can meet a variety of anti-corrosion requirements (according to the actual needs, you can choose different rubber material). 2, do not plug sealed. 3, long life, trouble-free, maintenance-free. 4, no moving parts and mechanical parts, electrical and manual operation without duckbill valve price, no noise. 5, open a small pressure greater than 0.01 m of head can be opened. 6, duckbill valve principle, head loss under normal conditions can be reduced to a very small extent. 7, can transform a variety of installation in the form of a duckbill valve, in order to meet customer needs. 8, ease of installation, low cost duckbill valve model, the running cost is small. Installation and dimensions: the rubber flange, 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. When installing the connection, flange connection flange size corresponds to guarantee sealed coupling fastened, but also be careful not to damage the rubber discharge check valve flanged lips. Duckbill valve, Serco supply materials industry leading prices Co. duckbill valve is provided by Serco Gongyi City Water Supply Materials. "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!