A pipeline breakaway coupling 10 comprises a pair of shut-off valve housings 12 clamped to each other by means of a detachable collar 14. A shut-off valve (20, fig. 8) is located within each shut-off valve housing 12 and is biased to move to a closed position on separation of the housings 12. The collar 14 includes a pair of collar members 26, 28 pivotably coupled to the other at or towards a first end 26a, 28a and secured to each other at or towards their other ends 26b, 28b, so as to clamp the collar members 26, 28 about the shut-off valve housings 12, by means of a breakaway coupling mechanism 30. An actuation mechanism 18 includes an actuator 32 and a driving assembly 38 to drive the actuator 32 from an extended position to a retracted position where it breaks the breakaway coupling mechanism 30. The coupling 10 can include a choke valve to restrict the flow of material through the bore of the coupling, and the separation of the coupling can occur in two stages, with the choke valve closing first, followed by separation and closure of the shut off valves.


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    Titel :

    A pipeline breakaway coupling


    Beteiligte:
    RICHARD THOMAS (Autor:in)

    Erscheinungsdatum :

    28.09.2016


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    F16L PIPES , Rohre / B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS



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