Cartridge valve

Details Cartridge valve Cartridge valve

1976-09-15

1978-06-27

Cohan, Alan

Fluid handling

Removable valve head and seat unit

13762568, F16K 326

Patent

active

040968804

ABSTRACT:
A valve construction, particularly a three-way, two-position valve which may be used by itself to control fluid flow, or which may be used as a pilot valve to control operation of a larger valve. The valve comprises a cartridge which may be installed within or removed from the bore of a valve body as a unit. The cartridge unit comprises a valve plunger, a plurality of similar glands, and a plurality of similar separators carried by the plunger, with static seals on the glands and dynamic seals between separators, and a spring for urging the plunger to a predetermined position.
The cartridge unit is held within a body bore by means of a cartridge nut which is threaded into one end of the bore. The nut has one end bearing against a separator at one end of the cartridge unit and presses a separator at the other end of the unit against a fixed abutment in the bore, so that axial movement of the plunger does not cause separation of the glands and separators.

REFERENCES:
patent: 2645450 (1953-07-01), Chessman
patent: 3487435 (1969-12-01), Sheardown
patent: 3648733 (1972-03-01), Hahn

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