Check-All Valve manufactures a complete line of in-line, spring-loaded piston-type check valves for conventional and renewable energy solutions. Its Flange Insert valves are designed to fit between ANSI Class flanges. In sizes ranging from ½" to 20", they are lightweight and can be installed in new installations or for retrofit. They can be used as check valves, low pressure relief valves, and vacuum breakers by selecting any of the wide range of spring settings. Applications include backflow prevention, thermal by-pass, fluid manifolds, injection line isolation, media injection, maintaining head pressure, and many others.Check-All Valve Mfg.www.checkall.comBooth 3567
