Fluid handling – Removable valve head and seat unit – Retained by bonnet or closure
Patent
1997-02-27
1998-05-26
Ferensic, Denise L.
Fluid handling
Removable valve head and seat unit
Retained by bonnet or closure
1376254, F16K 2500
Patent
active
057552584
ABSTRACT:
A valve assembly has a housing forming an outlet, having an axis, and secured on a support surface. A support block in the housing has a pair of inlet ports adapted to be connected to pressurized feed lines and an output port communicating with the outlet of the housing. A valve cartridge sitting on the support block includes a casing centered on the housing axis and having a rear end formed with axially rearwardly directed bumps and a stack of disks in the casing including an end disk formed with ports provided with seals projecting axially forward past the casing to the respective support-block ports and at least one valve disk displaceable to vary flow from the inlet ports to the outlet port. A stem projecting axially rearward from the casing is displaceable to move the valve disk. A retaining sleeve formed with a screwthread threadedly engaging the housing is centered on the axis, surrounds the valve cartridge, has a front end bearing directly on the support block, and has a shoulder bearing axially forward on the bumps of the casing and pressing the seals into the support-block ports so that the casing is retained by the sleeve on the support block. A handle is mounted on the stem outside the housing.
REFERENCES:
patent: 2923318 (1960-02-01), Monson
patent: 3788601 (1974-01-01), Schmitt
patent: 4226260 (1980-10-01), Schmitt
patent: 4285361 (1981-08-01), Lissau
patent: 4887642 (1989-12-01), Bernat
patent: 4941506 (1990-07-01), Bergmann
patent: 4971113 (1990-11-01), Pawelzik et al.
patent: 5195555 (1993-03-01), Kanpp
Hannemann Fred
Pawelzik Manfred
Dubno Herbert
Ferensic Denise L.
Friedrich Grohe AG
Kim Joanne Y.
Wilford Andrew
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