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? GS-RA-69

Illustration GS-RA-69: the U.S. Coast Guard has not released this illustration.

Question

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? GS-RA-69

Illustration GS-RA-69: the U.S. Coast Guard has not released this illustration.

Accepted Answer

Option C: D. Access valves utilizing a spring-loaded Schrader core design are standard for hermetic refrigeration servicing. The core depressor inside the service hose fitting automatically unseats the valve upon attachment.