Cast Iron Swing Check Valve with Manual Adjustable Lever, Flanged One Way Non Return Valve for Municipal Industrial System
High Tensile Strength: Precision cast integral valve body ensures stability under pressure.
Seal Resistance: Seat ring overlay with Stellite alloy provides excellent wear and erosion resistance.
Flanged End Design: Standard ASME B16.5 flanges facilitate easy pipeline installation.
Widely Applicable: Ideal for various industrial applications including petrochemical and power plants. Customizable Options: Available in different sizes and pressures for tailored solutions.
Automatic one-way shut-off design, medium flow lifts disc to open; backflow pushes disc to close tightly, effectively prevent medium reverse flow
Manual auxiliary lifting structure available for on-site maintenance and pipeline inspection
Precision cast integral valve body, compact structure, high tensile strength, stable pressure resistance
Seat ring overlay with Stellite alloy, excellent wear & erosion resistance, suitable for high temperature high pressure working condition
Optional PTFE/EPDM soft sealing for zero leakage in normal temperature corrosive medium
Main fasteners adopt stainless steel material, anti-rust and avoid jamming under damp chemical environment
Standard ASME B16.5 flanged end, accurate flange size, easy pipeline butt installation
Widely applied in petrochemical, power plant, water supply, gas, pharmaceutical and industrial process 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.