Hydraulic Quick Couplings
Double shut off couplings are used extensively when it is important to minimize fluid loss upon disconnections . Both halves of coupler , the body and nipple,contain shut off valves,These valves open automatically when the body and nipple are connect,and close automatically when two halves are disconnection-keeping fluid loss to a minimum.
Bi-directional shut off coupler with an automatic shut off valve built in the socket and plug Recommended for piping of chemicals,steam and oil.