Datasheet Check valve Type BCV With spring Type BCVA Without spring Nominal pressure PN 25/20/16/10 Nominal size DN 50 - 600 Material CF8M • Short face to face • Low weight easy installation • Low opening low pressure and pressure drop • Good tightness • Short closing time • Available with spring • Replaceable shafts The SOMAS check valve can be used on liquid, steam and gas. The check valve should be clamped between flanges. Pressure rating is PN 25, but the check valve can also be mounted between other standard flanges. The disc is supported by two shafts, which are replaceable when necessary. The shafts are sealed in the body by graphite gaskets. The closing time is short due to the seat angle in the body. When required, the valve can be equipped with spring(s) to shorten the closing time. For installation on liquids the version with spring(s) is recommended. Sizes DN 200 and upwards have a lifting eye for easy mounting.

Tightness class Corresponding to ASME B16.104 Class V at actual pressure test. Working pressure and temperatures, PN 25 20° 25 Pressure test1 Open valve Closed valve 38 25 Diagram showing pressure drop With spring, vertical pipe With spring, horizontal pip Without spring, vertical pipe Without spring, horizontal pipe 2

Further technical information Technical data for the materials used in the SOMAS valves, flange standard, steam data, etc. can be found in section 6 of the SOMAS catalogue. See valve specification system.

Ordering See valve specification system. Valve specification system Without spring Material – valve body Nominal pressure Sealings – shafts 1 = Graphite Material – seat Valve body design A = Wafer type Bearing – valve body/shaft 1 = Without bearing 11 Drilling, counter flanges, Material – shaft SOMAS reserves the right to make improvements without prior notice.