Series CV, CVS Bronze Tee Pattern Swing Check Valves are used in commercial and industrial applications to prevent reverse flow. They feature a bronze body tee pattern design, bronze cap, bronze disc, and brass hanger pin. Model CV is available in sizes 3/8 to 4 in. (10 to 100mm) with NPT female threaded end connections. Model CVS is available in sizes 1/2 to 3 in. (15 to 80mm) with solder end connections. Series CV, CVS provides low pressure drop and automatic closure when fluid flow is stopped. Maximum Pressure: 200psi (13.8 bar) WOG (non-shock), 125psi (8.6 bar) WSP..