Worldwide Sale duckbill check valve
Duckbill check valves are widely used in the demanding applications of many industries, are precision-molded, one-piece elastomeric valves that provide reliable backflow prevention at low pressure differentials.
Duckbill check valves allow free flow with positive differential pressure. With negative differential pressure, backflow is checked. Pressure drop across the valve is a feature unique to duckbill check valves. They can be designed to operate in a few millimeters (inches) of water to several hundred KPa (psi), depending on valve size, geometry and compound characteristics.
Duckbill check valves are also designed to start functioning at specific opening and closing pressure ranges, depending on your specifications.
The Duckbill Valve Flanged Type is manufactured with a nylon reinforced rubber flange design, and furnished with galvanized carbon steel or stainless steel 304/316 retaining ring flange. The valves can be installed directly to the pipe flanges. Normally, GYLDT manufactures flanged type duckbill valves from DN150mm to DN2400mm, but we can supply the valves with any dimensions to meet your needs.
