F - Mech Eng,Light,Heat,Weapons – 16 – K
Patent
F - Mech Eng,Light,Heat,Weapons
16
K
137/35
F16K 15/00 (2006.01) F16K 17/00 (2006.01) F17D 5/02 (2006.01)
Patent
CA 1284288
ABSTRACT OF THE DISCLOSURE An emergency shut-down system to close a gate valve in a pipeline and therefore terminate flow. The closing action is initiated when a pilot valve senses pressure in the pipeline outside predetermined limits. This reduces the signal pressure in the system which, in turn, causes a fluid dump from the gate valve actuator which closes the gate valve and terminates fluid flow in the pipeline. The system is reactivated by manually pumping the system which re-opens the gate valve and allows fluid flow in the pipeline to again continue.
507736
Barber Industries Inc.
Johnson Clarence W.
Uren John Russell
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