Characteristics of American standard axial flow check valve:

1. Streamlined flow channel, medium does not flow around, valve flow resistance is small, saving energy.  

2. Adopting a special sealing structure, the valve closes tightly regardless of the pressure behind it, with good sealing performance. Overcoming the disadvantage of poor sealing performance of general check valves at low back pressure.  

3. Adopting a floating valve disc structure, it can automatically compensate for errors caused by installation and wear during use, ensuring a tight fit of the sealing surface and improving sealing performance.  

4. The opening and closing stroke is short, and it can automatically reset without impact. At a lower flow rate, the valve can be fully opened and the closing time is short.