Which of the following illustrated expansion valves is designed to maintain a constant evaporator pressure rather than a constant evaporator superheat? Illustration GS-RA-24

Illustration GS-RA-24: the U.S. Coast Guard has not released this illustration.

Question

Which of the following illustrated expansion valves is designed to maintain a constant evaporator pressure rather than a constant evaporator superheat? Illustration GS-RA-24

Illustration GS-RA-24: the U.S. Coast Guard has not released this illustration.

Accepted Answer

Option C: C. Automatic expansion valves maintain a constant evaporator pressure rather than superheat, modulating refrigerant flow in response to evaporator pressure changes rather than bulb temperature, suitable for constant-load direct expansion applications.