Forward direction closing safety valve device for...

Details Forward direction closing safety valve device for... Forward direction closing safety valve device for...

G - Physics

05

D

137/34

G05D 7/00 (2006.01)

Patent

CA 1292659

ABSTRACT A forward direction closing safety valve device comprising an automatic shutting safety valve provided within a pressure transforming chamber and being controlled by a timing device under normal condition and capable of closing itself in response to the forward direction flow of the excessive high pressure gas caused when pressure reducing failure in the pipeline passage. It will no longer be caused to open by the control of the timing device so as to achieve its objective of automatically shutting the pipeline passage off by means of the help provided by the high pressure gas in the forward direction in prevention of the disater of gas explosion from happening accidentally.

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