Control valve means particularly adapted for swimming pool heate

Stoves and furnaces – Heaters – Surface

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Details

13762529, 237 1A, 165 18, F24J 302

Patent

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040611329

ABSTRACT:
A five-way valve embodying a cylindrical body with valve seats and cooperating valve discs operable by a stem and having associated inlet and outlet ports. The stem is actuatable by pistons in the cylindrical body. The pistons are driven by pressure under the control of three-way valves. The valve structure is adaptable for use in a swimming pool heating system having a primary pool heater and also a solar heater. The water is circulated by a pump pumping through a filter. The three-way valves are controlled in response to a thermostat responsive to temperature at the solar heater. The three-way valves respond to water pressure differential as between the upstream and downstream sides of the pump in the system.

REFERENCES:
patent: 2713252 (1955-07-01), Jackson et al.
patent: 2962437 (1960-11-01), Lindsay
patent: 3056574 (1962-10-01), Greenawalt
patent: 3677291 (1972-07-01), Laws
patent: 3868945 (1975-03-01), Konopka
patent: 3889742 (1975-06-01), Rush et al.
patent: 3910490 (1975-10-01), Saypalia, Jr.

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