Axial flow check valve
This axial flow check valve features a streamlined venturi-shaped flow passage with a spring-assisted axial shuttle disc design, providing ultra-low flow resistance, rapid response and reliable backflow prevention. Made of cast steel, stainless steel or alloy steel with optional metal hard seal or PTFE soft seal, it is suitable for preventing reverse flow of media such as water, oil, gas, steam and light corrosive fluids in high-pressure, high-temperature and large-flow pipeline systems. With short disc stroke and buffered closing action, it effectively reduces water hammer effect and protects pumps, compressors and pipeline equipment from backflow impact. Supporting flange or butt-weld connections, it is widely used in pump outlets, long-distance transmission pipelines, municipal water supply networks and petrochemical plants, delivering efficient and safe fluid control with long service life and minimal maintenance requirements.








