Spirax Sarco Check Valve, Disc, 1/2 in Nominal, FNPT, 725 psi, -25 to 205 deg C, Austenitic Stainless Steel Body, FKM Trim

DCV41 is an austenitic stainless steel disc check valve with screwed or socket weld end connections. Its function is to prevent reverse flow on a wide variety of fluids for applications in process lines, hot water systems, steam and condensate systems. For oils and gases, a FKM seats available and for water an EPDM seat is available. Soft seat versions provide a zero leakage rate or bubble tight shut-off, i.e. they meet DIN 3230 BN1 and DIN 3230 BO1, provided a differential pressure exists (Note: Soft seat options are not available with socket weld ends). The shut-off of the standard valve conforms to DIN 3230 BN2. When a heavy duty spring is installed with an EPDM seat, the valve is suitable for boiler feed water check applications. A high temperature spring version is available to operate at 752 deg F (400 deg C).