4" High Quality Grooved Brass Swing Check Valve

Check valve for firefighting systems, it is a mechanical device that permit liquids and gases to flow in only one direction, preventing flow from reversing. It is classified as one-way directional valves meaning they have two openings in the body, one for fluid to enter and the other for fluid to leave. The check valve consists of four main components: the body, a disc, a spring and a spring retainer. It is UL listed, FM listed, and nationally recognized safety standards. Available in one diameter 4".