초록 ▼

An improved tempered water mixing system comprises a thermostatically operated main mixing valve for blending cold and hot water supplies during normal system operation, a secondary temperature-limiting flow-control device in the form of a thermostatic valve (also known as a pressure-regulator), wit

An improved tempered water mixing system comprises a thermostatically operated main mixing valve for blending cold and hot water supplies during normal system operation, a secondary temperature-limiting flow-control device in the form of a thermostatic valve (also known as a pressure-regulator), with the thermostatic valve and the pressure regulating valve being connected to function as fail-safe devices so as to provide an uninterrupted discharge outflow at a substantial flow rate in the event of a malfunction of the main mixing valve.

대표청구항 ▼

[ What is claimed is:] [1.] A tempered water mixing system, comprising:a system water discharge conduit;a main mixing valve for connection to a cold water supply and a hot water supply, said main mixing valve including means for blending water from said cold and hot water supplies so as to cause sai

[ What is claimed is:] [1.] A tempered water mixing system, comprising:a system water discharge conduit;a main mixing valve for connection to a cold water supply and a hot water supply, said main mixing valve including means for blending water from said cold and hot water supplies so as to cause said main mixing valve to discharge a tempered water stream having a selected temperature;a thermostatic temperature limit control valve having means for connection to a cold water supply, said temperature limit control valve being connected to receive said tempered water stream from said main mixing valve and to pass said tempered water into said system water discharge conduit, said temperature limit control valve having means for modulating the addition of cold water to said tempered water stream when the temperature of said tempered water stream exceeds a preset limit; anda pressure-responsive flow control valve for introducing cold water to said system water discharge conduit when the fluid pressure of said tempered water stream falls below a predetermined level.