Thhis 810 series piston check valve combines a piston with an embedded O-ring that seals on the seat. Flow pressure moves the piston and seal off the seat and exposes the cross holes in the piston.
These brass check valves have a maximum operating pressure of 500 PSI to cover an array of air and fluid applications. Their compact design and low back pressure positive seal makes them reliable fittings to keep your system safe. The flow arrow on the body will point inlet to outlet. Valve body is 1" diameter and 1.86" long. Specifications: