Title: Pressure balancing valve

• Summary
• Claims
• Description
• View all

Abstract: A valve assembly for use in building water systems where a hot and cold water supply line pressures vary, and having separate valve means for regulating the hot and cold water pressures. Independently mounted pressure equalizing means operated by the supply water pressures are connected to operate each of the valve means responsive to any pressure differential caused by changes in the supply pressures, to change the water pressure regulated by each of the valve means, with the magnitude and sense of the change reducing any such differential to zero and equalizing the pressures. The separate valve means and pressure equalizing means are contained in a cartridge having separate supply water chambers and hydraulic fluid chambers associated with each water chamber. A pair of movable walls are mounted in the cartridge each one separating one water chamber from the associated hydraulic fluid chamber, and the cartridge has restricted orifice means interconnecting the hydraulic fluid chambers to equalize the pressures therein while dampening movable wall oscillations due to changes in water chamber pressure. Each movable wall operates one of the valve means, so that the water pressure in one water chamber acts against one side of the movable wall and hydraulic fluid pressurized by the water pressure in the other water chamber acts against the other side of each movable wall.


Do you think this is a good invention? Vote now: