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.
Official USCG Answer & Rule Citation
Correct Answer: Option D — head pressure regulating valve
The illustrated valve features a large diaphragm housing and spring assembly designed to modulate high-side discharge pressure, identifying it as a head pressure regulating valve used in marine refrigeration systems.
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