Ball check valves use a spring-loaded or free-floating ball to control reverse flow in a wide range of fluid or gas systems. These valves are offered in compression, hose barb, and threaded configurations, including NPT and UNF connections. Body material options include brass, nickel-plated brass, aluminum, and stainless steel to meet durability and compatibility needs. Available in sizes from 1/8" to 1/2", many models feature stainless steel internal components and seal choices like Buna-N, Viton, EPDM, and Neoprene. Operating pressures range from low-pressure applications to high-pressure systems up to 3000 psi.