In a refrigeration system, the valve shown in the illustration is used for what purpose? Illustration GS-RA-14

Illustration GS-RA-14: the U.S. Coast Guard has not released this illustration.

Question

In a refrigeration system, the valve shown in the illustration is used for what purpose? Illustration GS-RA-14

Illustration GS-RA-14: the U.S. Coast Guard has not released this illustration.

Accepted Answer

Option C: head pressure regulating valve. Head pressure regulating valves sense compressor discharge pressures and modulate to bypass hot gas directly to the receiver during low ambient operating conditions, ensuring adequate liquid pressure at the expansion device.