Y Type Flanged Ball Check Valve Ductile Iron Rubber Ball Non Return Valve for Water Sewage Pipeline
Adopts high-quality QT450 ductile iron body, high toughness, not easy to crack, durable for long-term pipeline operation.
Full Anti-corrosion Treatment EN:Internal and external epoxy resin coating, anti-rust, anti-corrosion, suitable for buried pipelines and sewage environments.
Y-Type Low Flow Resistance Design EN:Streamlined Y-shaped cavity structure provides large flow passage, low pressure loss, effectively saves pump energy consumption.
Rubber Ball Zero Leakage Seal EN:High elastic rubber ball sealing element, flexible close and fit tightly, achieves bubble-tight zero backflow sealing effect.
Anti-blocking Performance EN:Ball rolling structure is not easy to jam, can pass fine sand, sediment and fiber impurities, more suitable for sewage medium.
Self-acting Automatic Operation EN:Fully automatic opening and closing by medium pressure, no electricity, no manual operation, stable and reliable.
Easy Maintenance Structure EN:Bolted top cover design, convenient to open the cover to clean dirt or replace rubber ball without removing the valve from pipeline.
Standard Flange Connection EN:Standard GB flange dimension, PN10/PN16 pressure grade, easy installation and perfect pipeline matching.
Reduce Water Hammer Damage EN:Soft closing rubber ball effectively buffers water hammer pressure, protects water pump and pipeline system.
Complete Size Range EN:Full stock size from DN40 to DN300, supports fast delivery and customized requirements.










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.