G - Physics – 05 – D
Patent
G - Physics
05
D
G05D 16/00 (2006.01) F17D 1/075 (2006.01) G05D 16/20 (2006.01)
Patent
CA 2157853
A fluid pressure reduction system includes at least two streams. A working stream includes valves (19 and 20) with associated pressure sensors (22, 23) for modulating output pressure. A control system (50) monitors pressure via sensor 18 and actuates slam shut valve (16) in the event of a fault. In the event that another stream is at fault the arrangement allows slam shut (16) to be opened. In the faulty stream only, pressure again rises, the slam shut is again shut and cannot be reopened until manually reset following fault clearance. Independent control in each stream assists in system integrity. All streams can close and reopen once. The second closure determines the faulty stream.
Ackerley Robert
Raybould Anthony David
Bg Plc
Gowling Lafleur Henderson Llp
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