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 connected, and close automatically when two halves are disconnection-keeping fluid loss to a minimum. pneumatic coupling, pneumatic couplings, hydraulic coupling, quick coupling, hydraulic quick acting couplers, 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. pneumatic coupling, pneumatic couplings.

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ISO A Series Quick Couplings Made Of Carbon Steel(According ISO 7241-A)