Manual Lift Type Flanged Check Valve Multi-material One Way Non Return Check Valve
Vertical lift structure, medium pressure lifts disc automatically to open valve, medium backflow pushes disc to close tightly
Integral cast valve body, compact structure, high structural strength, good pressure bearing performance
Optional WCB/LCB/WC9/CF8M five kinds of body materials, match normal/low temp/high temp/corrosive/acid working environment
Seat ring with Stellite STL overlay, excellent wear resistance, high temperature resistance and anti-scuffing property
Precision machined disc & seat, tight shut-off, low leakage rate to avoid medium backflow damage to pump & equipment
All fasteners available in stainless steel, rust-proof for humid & chemical pipeline environment
Flanged connection comply with ASME B16.5, convenient pipeline butt and field installation
Widely used in petrochemical, power plant, water supply, gas and acid medium industrial pipeline














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.