F - Mech Eng,Light,Heat,Weapons – 16 – K
Patent
F - Mech Eng,Light,Heat,Weapons
16
K
137/56
F16K 47/04 (2006.01) F16K 1/52 (2006.01) F16K 15/02 (2006.01)
Patent
CA 1279552
-1- CONTROL STOP FOR FLUSHING SYSTEM Abstract of the Disclosure A control stop for a flushing system includ- ing a metering flush valve connected to supply liquid to a toilet fixture. The control stop is in series flow relation between a source of pressurized liquid and the metering flush valve and serves the several functions of controlling flow to the metering flush valve for reducing noise and maintaining desired flush- ing action, preventing reverse flow and trapping pres- sure at the metering flush valve in the event of loss of inlet pressure, and shutting off the flow path for installation, service or replacement of the metering flush valve. The control stop includes a regulator having a valving portion engageable with a valve seat communicating with the outlet of the control stop and acts as a low pressure cut-off rather than a check valve. A spring biases the regulator toward the valve seat and the regulator is normally held open by liquid pressure. A stop member is adjustable to limit the opening movement of the regulator for flow control, and can be moved to a position closing the regulator valving surface against the valve seat to shut off the liquid flow path.
521460
Masco Corporation
Smart & Biggar
LandOfFree
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