Two-way cartridge valve for aggresive media

Details Two-way cartridge valve for aggresive media Two-way cartridge valve for aggresive media

1994-12-12

1995-09-12

Walton, George L.

Valves and valve actuation

Fluid actuated or retarded

Pilot or servo type motor

251 45, H16K 3140, H16K 3142

Patent

active

054491428

ABSTRACT:
A two-way cartridge valve for aggressive media has a replaceable module including a main valve seat, a diaphragm sealing member for the valve seat, and a pilot seat. In one embodiment, a leaf spring is employed to bias the diaphragm toward the open position for actuation under conditions of minimal pressure differential. In another embodiment a resilient support is provided for the diaphragm behind the region of engagement with the main seat.

REFERENCES:
patent: 2940722 (1960-06-01), Vargo
patent: 3079952 (1963-03-01), Miller
patent: 3103338 (1963-09-01), Marmo
patent: 3155366 (1964-11-01), Rasmussen
patent: 3362679 (1968-01-01), Wan
patent: 3363433 (1968-01-01), Barbier
patent: 3946983 (1976-03-01), Engberg
patent: 4179096 (1979-12-01), Fromfield

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