Internal valve for pressure fluid containment vessels

Details Internal valve for pressure fluid containment vessels Internal valve for pressure fluid containment vessels

F - Mech Eng,Light,Heat,Weapons

16

K

F16K 31/122 (2006.01) F16K 27/07 (2006.01) F16K 41/10 (2006.01) F16K 51/00 (2006.01)

Patent

CA 2053111

An internal valve for pressurized fluid containment vessels having vessel ports. The valve includes a valve seat associated with the vessel port and a valve member movable between a closed posi- tion against the valve seat and an open position wherein fluid can flow through the vessel port. A control chamber positioned in the vessel is connected to the valve member. A motive mechanism acting on or in the control chamber, by a control system outside of the ves- sel, controllably moves the valve member to at least one of the open or closed positions. The control chamber is sealed from fluid in the vessel by a sealing system, which includes a flexing surface against which fluid pressure in the vessel acts to thereby bias the valve mem- ber towards one of the open or closed positions.

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