Adaptable control valve for fluid treatment system

Details Adaptable control valve for fluid treatment system Adaptable control valve for fluid treatment system

1997-08-05

1999-06-08

Drodge, Joseph W.

Liquid purification or separation

With time control

13762418, 1376242, 210120, 210140, 210190, 210277, B01D 2446, F17D 316

Patent

active

059102446

ABSTRACT:
A control valve for a fluid treatment system, such as a water softener or a water filter, includes a manifold which mounts a pair of open-ended, cylindrical valve bodies having ports in fluid communication with passages in the manifold. Interchangeable single and double poppet valve assemblies are received into the open ends of the valve body. The poppet valve assemblies have diaphragm valve actuators disposed between chambers that are in fluid communication with selective ones of an array of pilot valves that are also mounted on the manifold. The valve assemblies may be piloted to one position by a spring. A tank adapter connects the manifold to a treatment tank. The tank adapter can be connected to the manifold in two alternate alignments which connect passages in the manifold to the top and bottom of the treatment tank so that co-current or countercurrent flow of regenerative fluid and the fluid to be treated can be alternately selected. A variety of sequences of flow paths can be selected by selection of the interchangeable poppet valve assemblies, by plugging selected ports in the valve housing, and by capping open, unused ends of the valve bodies.

REFERENCES:
patent: 2665251 (1954-01-01), Mendenhall
patent: 3352419 (1967-11-01), Entringer et al.
patent: 3441047 (1969-04-01), Lyall et al.
patent: 3701360 (1972-10-01), Morrison
patent: 3794061 (1974-02-01), Horvath et al.
patent: 3867961 (1975-02-01), Rudelick
patent: 3960166 (1976-06-01), Linser
patent: 4269028 (1981-05-01), Hattori
patent: 5273070 (1993-12-01), Chili et al.

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