Which of the illustrated valves is used to gain access to a hermetic system and features a Schrader core valve which is unseated by the core depressor of hose fitting when attached? Illustration GS-RA-69 Illustration GS-RA-69: the U.S. Coast Guard has not released this illustration.

Official USCG Answer & Rule Citation

Correct Answer: Option D — D

Access valves equipped with Schrader spring-loaded core mechanisms allow gauge manifold hookups for servicing hermetic systems without releasing refrigerant charges.

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