Check valve assembly and method for mounting and installing chec

Details Check valve assembly and method for mounting and installing chec Check valve assembly and method for mounting and installing chec

1995-12-18

1996-12-17

Michalsky, Gerald A.

Fluid handling

With repair, tapping, assembly, or disassembly means

Assembling, disassembling, or removing cartridge type valve

137218, 1374542, 137512, 137527, 1376142, F16K 1503

Patent

active

055843158

ABSTRACT:
A check valve assembly, including a check valve and an associated check valve mounting flange. Additionally, a backflow preventer is shown, which uses a pair of check valve assemblies transversely positioned within a tubular housing. Also disclosed is a method for installing a downstream check valve to a mounting flange, located within a remote, outlet chamber of the backflow preventer housing. The check valve has an elongated base plate, generally elongated in shape. The mounting flange is provided with an elongated hole, sized and configured to pass a properly oriented downstream check valve during installation and removal procedures. The location and design of the downstream check valve assembly ensures that during backflow conditions, the check valve compresses against the mounting flange in sealing engagement.

REFERENCES:
patent: 4054153 (1977-10-01), Guyton
patent: 4259983 (1981-04-01), Kessel
patent: 4284097 (1981-08-01), Becker et al.
patent: 4508139 (1985-04-01), Teumer
patent: 5046525 (1991-09-01), Powell
patent: 5143112 (1992-09-01), Scaramucci
patent: 5156183 (1992-10-01), Scaramucci

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