Thom Stewart wrote:

I'd say the "Red Hand Valve" was the inlet Valve. The two reducing
valves are on the exhaust side. Just an idle observation of and "Old
Huff & Puffer"


You may be right. It looked like it was mounted to the
cylinder exhaust chest, but that may be the pilot valve instead.

I'm going to bribe Scotty to bring the next one to my house,
it looks like a great toy.

BTW Thom did you ever have a plant using 20 ~ 60V DC
instrumentation & controls? Made by ITT/Barton if memory
serves, haven't seen one of them in a while. 1950s
technology but effective and efficient.

Regards
Doug King