Instantaneous water heater gas control valve

Details Instantaneous water heater gas control valve Instantaneous water heater gas control valve

1981-04-08

1982-08-31

Tapolcai, Jr., William E.

Automatic temperature and humidity regulation

Closed fluid heaters

Combined thermostat and flow controlled

122448R, 431255, F28F 2700

Patent

active

043468357

ABSTRACT:
A multichamber gas control valve modulates and controls the flow of gas to the burner of an instantaneous water heater. Flow of gas from an inlet chamber to a first chamber of the valve is controlled by a thermostatic valve and gas flow from the first to a second chamber is controlled by a temperature controller. Gas flow from the second chamber to an outlet chamber is controlled by a spring biased valve actuated by a diaphragm actuator operated in response to flow of water through a venturi in the water supply of the heater. The several chambers are in a common valve body closed by a removable cover to provide easy access to the components of the assembly.

REFERENCES:
patent: 1330362 (1920-02-01), Walker
patent: 3258203 (1966-06-01), Kurz et al.
patent: 3490693 (1970-01-01), Meier
patent: 3627202 (1971-12-01), Meier
patent: 3770197 (1973-11-01), Meier
patent: 3770363 (1973-11-01), Friedrich
patent: 4184457 (1980-01-01), Trotter et al.

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