Serco Gongyi City Water Supply Materials Central Plains region of the earliest manufacturers of stainless steel duckbill valve duckbill valve Which is better, the company uses advanced production techniques to coax valve continuous reform and innovation, making substitution Red Valve, popular at home and abroad. Duckbill valve for sewage systems, drainage systems, dams emissions, airport / highway drainage, sewage tank discharge, odor barrier has a significant effect. With full rubber structure, never rust or corrode. Not deformed or in the open and closed state freeze, eliminating back. Nor will there be due to accumulation of trash and hanging open, provide tight seal. When installing a built-in check valve duckbill valve Which is good, special attention should be medium flow direction, the direction of the normal flow of the media should be consistent with the direction indicated by the arrow on the valve body, otherwise it will truncate 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 . Straight-lift check valve should be installed in a horizontal pipeline, vertical lift check valves and foot valve is usually installed in a vertical pipeline, and the media bottom-up flow. Advantages and disadvantages of the advantages of the duckbill valve: low cost duckbill valve duckbill valve, such as the use of suitable rubber material life than metal valve aeration type duckbill valve Which is good, easy installation, flexible installation, can be repaired; Cons: rubber body does not apply to the field of long-term outdoor operation, using high-quality rubber can not avoid aging. Clamp duckbill valve Which is good, duckbill valve, Serco supply materials provided by Serco Gongyi City Water Supply Materials Co., Serco Gongyi City Water Supply Materials Co., Ltd. (www.gyxjbcq.com/) strong, credible, in Zhengzhou, Henan gate valve industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Serco supply material and you work into the brilliant, for a better future!