Selector valve
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United States of America Patent
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Jun 23, 1992
Issued Date -
N/A
app pub date -
Feb 28, 1991
filing date -
Oct 20, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
This selector valve (20) may be used to control flow from a chemical supply (22) and a proportioner (14) attached to a faucet (12). The valve includes a valve body (30) having a central passage (32) receiving a rotatable stem assembly (38) having a stem (40) provided with interior passages (94, 96). The stem passages (94, 96) selectively communicate between an inlet line (18) and any one of a plurality of transverse intermediate passages (44, 46 and 48), or a transverse outlet passage (50), and an outlet line (16) depending on the rotational position of said stem (40). Each intermediate passage (44, 46 and 48) includes a metering adaptor (54, 56 and 58) and the outlet passage (50) also includes a metering adaptor (60). When the stem passages (96) is aligned with the metering adaptor (54, 56 and 58) of an intermediate passage (44, 46 and 48) fluid flows through that adaptor by way of connecting passages (102, 100, 104 and 87) to the outlet line (16). When the stem passage (96) is aligned with the metering adaptor (60) of the outlet passage (50) fluid flows through that adaptor directly to the outlet line (16).
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