Zero internal pressure cartridge

Details Zero internal pressure cartridge Zero internal pressure cartridge

F - Mech Eng,Light,Heat,Weapons

16

K

137/118

F16K 11/00 (2006.01) F16K 11/078 (2006.01)

Patent

CA 1186975

ZERO INTERNAL PRESSURE CARTRIDGE ABSTRACT OF THE DISCLOSURE A valve includes a sleeve having a water inlet and a water outlet. There is a stem movable within the sleeve to control the flow of water from the inlet to the outlet. A pressure member is positioned within the sleeve and coaxially arranged with the stem. The pressure member is fixed relative to the sleeve and is within the path of flow from the sleeve inlet to the sleeve outlet. A fixed seal is positioned between the stem and the pressure member and a seal of equal diameter, is carried by the stem and is in sealing engagement with the sleeve. The above des- cribed seals balance the stem. - 1 -

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