Duckbill valve, Serco supply materials industry-leading, scimitar duckbill valve provided by Serco Gongyi City Water Supply Materials Limited. Serco Gongyi City Water Supply Materials Co., Ltd. (www.gyxjbcq.com/) is a professional "PTFE lined rubber joints, standard waterproof casing, duckbill valve, power connector, stainless steel rubber joints" of the company. Since its inception, we adhere to the "honesty, sound management" approach, the courage to healthy competition in the market, so that "Serco supply material" brand has a good reputation. We adhere to the "service first, customers first" principle, so that the water supply materials Serco has won the trust of customers at the gate of the congregation, and establish a good corporate image. Special Note: This information is for reference pictures and information, please contact us to obtain the most accurate information, thank you! 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, no electrical and manual operation, no noise. 5, open a small pressure greater than 0.01 m of head can be opened. 6, under normal conditions, the head loss can be reduced to a very small extent. 7, can transform a variety of installation form, in order to meet customer needs. 8, ease of installation, low cost, low operating costs. Serco duckbill valve is mainly used in sewage treatment, drainage systems, water pumps and fluid outlet system upgrade at the pumping station. The main features of Serco duckbill valve is: 100% elastomeric duckbill valve structure use, maintenance-free, to prevent intrusion mosaic duckbill valve, solid particles still jammed tightly closed; it does not freeze in the open and closed; open less head loss; for the special requirements of different users working conditions, materials, customized, durable, long service life.