Control cartridge for a single-lever mixer fitting

Details Control cartridge for a single-lever mixer fitting Control cartridge for a single-lever mixer fitting

1995-10-10

1997-08-19

Fox, John

Fluid handling

Systems

Multi-way valve unit

137801, 251340, F16K 11074

Patent

active

056577915

ABSTRACT:
In a plumbing assembly, a control cartridge for a single-lever mixer fitting is small enough to be installed into the mouth region of a discharge arm. The shut-off elements include a first control disk, which is fixed to the fitting housing and a second control disk, which can be rotated by an actuating lever. The control disks preferably consist of ceramic and have, in each case, two through-passages, one each for cold and hot water. Upon rotation of the fitting, first the cold-water through-passage and then hot-water through-passage are released, and, subsequently, the cold-water through-passage is throttled. With exclusively one rotary movement of the lever, the following flow conditions result: cold-mixed-hot. The resulting water through-flow remains at least approximately constant after achieving the maximum cold-water through-flow.

REFERENCES:
patent: 4262699 (1981-04-01), Fabian
patent: 4423752 (1984-01-01), Psarouthabis
patent: 4610268 (1986-09-01), Knapp
patent: 4765002 (1988-08-01), Platner

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