Duckbill valve made of elastic neoprene synthetic fibers specially processed duckbill valve price, shaped like a beak, it said duckbill valve. Under no internal pressure, the duckbill outlet itself under the elasticity of the closure; gradually increases with internal pressure, the duckbill outlet increases to maintain the liquid can be discharged at high flow rates. The earliest design a duckbill valve, in order to cooperate with the national standards, provides the following standard flange diameter duckbill valve 800 GB 1.0Mpa reference center distance and the outer diameter of the bolt hole duckbill valve features more than 800 diameter (inclusive) duckbill valve type, referring GB 0.6Mpa center distance and the outer diameter of the bolt hole. Serco duckbill valve placement principles: 1, V-type rubber check valve, should be kept in a cool, dry place; 2, set down the floor or above ground level; 3, the valve should be kept away from heat, ozone, oil, acid alkali area; 4, non-sharp intense radiation exposure and light load; 5, non-sharp utensils scratched the surface; 6, the box marked "↑", does not allow upside down or flat. Duckbill valve action, 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!