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Apollo PLSS oxygen and water valves

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Topic: Apollo PLSS oxygen and water valves

Apolloman
Member

Posts: 153
From: Ledignan, Gard (30), France
Registered: Mar 2009

posted 10-11-2020 01:40 AM

I would like to know if the oxygen and water flow valves in the Apollo Portable Life Support System (PLSS) are solenoid valves or manual operated valves.

It seems to me that for the diverter valve
on the lower right corner of the PLSS is a manual valve. Thank you for your answers.

holcombeyates
Member

Posts: 269
From: UK
Registered: Dec 2010

posted 10-11-2020 03:35 PM

These would be manual valves, the water diverter valve was activated by the crewman to select the level of cooling required.

Reliability was a key design principle for the PLSS.

Oxygen was via a regulator valve.

If you send me an email I can send you an article I wrote on the PLSS design.

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