Power-operated valve

Details Power-operated valve Power-operated valve

F - Mech Eng,Light,Heat,Weapons

16

K

137/38

F16K 31/02 (2006.01) F16K 31/40 (2006.01)

Patent

CA 2005265

ABSTRACT Power-operated valve In a power-operated valve in which the pressure of a working fluid is used to control the opening and closing of the valve member in dependence on the condition of an integral power-operated bleed valve, a compensation passage being formed in the valve member to permit working fluid to close the valve when the bleed valve is closed, the compensation passage is formed in that area of the valve member which is bounded by the valve seating and which also defines the cross-sectional area of the inlet chamber, whereby the closing force on the valve member is proportional to the area of the valve housing, thus enhancing the sensitivity of the valve. In a preferred embodiment, a filter is incorporated in the valve member to filter the working fluid to the compensation passage without filtering the bulk of fluid passing through the valve.

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