Lubricated water valve

Details Lubricated water valve Lubricated water valve

1986-03-12

1987-03-24

Cohan, Alan

Fluid handling

With cleaner, lubrication added to fluid or liquid sealing...

Liquid supplied at valve interface

13762517, 251355, 184 18, F16K 336, F16K 1102

Patent

active

046517693

ABSTRACT:
A water valve with a hollow piston axially reciprocable in a cylindrical bore of a surrounding sleeve is provided, for long-term lubrication of the piston, with grease chambers formed as inwardly open peripheral recesses on the inner sleeve surfaces at opposite extremities thereof. The valve is preferably of the single-handle mixing type, the piston being rotatable within the sleeve for selectively connecting a cold-water inlet and/or a hot-water inlet with a common outlet; the region of water flow between these ports is isolated by sealing rings from the two grease chambers.

REFERENCES:
patent: 837644 (1906-12-01), Reilly
patent: 2219271 (1940-10-01), Penick et al.
patent: 2965351 (1960-12-01), Campbell
patent: 3372904 (1968-03-01), Graham
patent: 3456677 (1969-07-01), Mongerson
patent: 3633870 (1972-01-01), Bayer
patent: 4187880 (1980-02-01), Humpert et al.
patent: 4374583 (1983-02-01), Barrington

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