Check-All Valve manufactures a complete line of in-line, spring-loaded, piston-type check valves. Check valves are available for practically every service application. They are offered with metal-to-metal or soft seats in sizes ranging from 1/8" NPT to 20" flanged connections. Pressure ratings are available from full vacuum to 10,000 psi.
Check-All Valve Mfg. Co.