Butterfly Wafer Check Valve Stainless Steel Disc Dual Flap Check Valve for Water Treatment Pipeline
Compact wafer design, 75% lighter than flange check valve, save piping & installation cost.
Dual disc with stainless steel spring, quick shut-off to reduce water hammer damage for pump system.
Low flow resistance design, minimize pressure loss & save pumping energy consumption.
Multiple material options: Ductile Iron/CF8/WCB body, EPDM/Metal seat, SS304/316 disc for water, chemical, gas service.
Flexible installation: horizontal & vertical upward available, small size for vertical downward mounting.
Excellent sealing, zero leakage for soft rubber lined version, high temp tight seal for metal seated type.
Anti-rust shaft & spring, low maintenance, long service life over 5 years in industrial pipeline.
Full size DN40-DN600, PN10/16 & Class150, comply with GB/API/JIS standard.







Qingdao Yida Tongtu Machinery Technology Co., Ltd., in the beautiful coastal city of Qingdao. Specializing in high-growth ventures such as valves and power equipment, the company is dedicated to providing comprehensive solutions for industries including petroleum, chemicals, and water utilities, empowering clients to grow and achieve success.
We are a cutting-edge trading enterprise specializing in one-stop industrial valve matching, deeply cultivating gate valves, globe valves, ball valves, check valves, butterfly valves, etc. Our main products include American standard API, German standard DIN, and Japanese standard JIS, suitable for various industries such as chemical, petroleum, gas, power, metallurgy, etc.
We selects qualified factories from the source, strictly controls product quality, adheres to the direct supply mode, and relies on the advantages of a streamlined and efficient team to achieve rapid implementation of customer demands. At the same time, we can provide customers with standard spot goods, non-standard customization, OEM, project batch matching, and a complete set of export documentation services, becoming a long-term stable valve procurement partner for customers with professionalism, reliability, and high cost-effectiveness.













Our mission is to offer "High Quality" & "Good Service" & "Fast Delivery" to help our clients to gain more profits.