Air volume control valve for water system pressure tank

Fluid handling – Diverse fluid containing pressure systems – Gas pressure storage over or displacement of liquid

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Details

137202, 137206, F16K 3118

Patent

active

054858658

ABSTRACT:
An air volume control valve apparatus is provided for use with a water system pressure tank. The apparatus includes an elongated tube that is supported on the tank with a first end exposed to an area exterior of the tank and a second end within the tank. A valve is provided for controlling the volume of air in the tank. The valve includes an elongated, buoyant float member having a first axial end supported for pivoting movement on the tube about a pivot axis extending in a direction transverse to the length of the tube, and a second free end opposite the first end. As the water level rises in the tank beyond a predetermined level, the float member is lifted on the water to an upper pivoted position in which the second end of the tube is closed off, and when the water level drops beneath the predetermined level, the float member pivots away from the upper position and the second end of the tube is uncovered.

REFERENCES:
patent: 350628 (1886-10-01), Howes
patent: 1090244 (1914-03-01), Staples
patent: 1403041 (1922-01-01), Lawson
patent: 2711465 (1955-06-01), Sanborn
patent: 3733449 (1973-05-01), Parker
patent: 4586528 (1986-05-01), Andres et al.

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