HM56/55 Series Five-Valve Manifold

For differential pressure applications, the Hex five valve blowdown manifold performs the block and equalizing functions of a standard three valve manifold and provides two additional block valves to be used for blowdown purposes. 

To blow down the impulse lines, the block valves on the manifold are closed, and the two blowdown valves are opened, allowing the impulse lines to be blown out through the ports on the lower side of the blowdown valves.