Tags: Back-Pressure Regulator

Electric-compensating back-pressure regulator

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Electric-compensating back-pressure regulator

usually found at the top of the regulator. In an electrically compensated regulator, turning the stem to obtain different refrigerant pressures and temperatures in the evaporator is accomplished by a small electric motor. This motor rotates the adjusting stem in accordance with temperature variations in a thermostatic bulb placed in the medium being cooled as …

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Air-compensating back-pressure regulator

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Air-compensating back-pressure regulator

A standard regulator is reset by manually turning the adjusting stem, which increases the spring pressure on top of the diaphragm. In an air compensated regulator, a change of pressure on top of the diaphragm is accomplished by introducing air pressure into the airtight bonnet over the diaphragm. As this air pressure is increased, the …

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HVAC Back-Pressure Regulator Applications of Controls

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In a refrigeration system designed to maintain a predetermined temperature at full load, any decrease in load would tend to lower below fullload temperature the temperature of the medium being cooled. To maintain constant temperatures in applications having varying loads, means must be provided to change refrigerant temperature to meet varying-load requirements. Refrigerant temperature is …

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