Regulator stash - what are they?

[mattrogers]

Hey gang,

I seem to have accumulated a pile of regulators - some my dad gave me, some from other giveaways, etc. I know what a couple of them are, but some I have no idea what they're for. Does anyone have any information on what I've got and what they're used for? Also, are they worth trying to sell somewhere?



Here's what I know:
Victor acetylene regulator
Watts low-pressure (160psi?) regulator: plastic fittings (extra fittings in a box, too)
ARO air filter 3/8NPT, one of the sights is busted.
ARO oiler 3/8NPT
Parker 250psi regulator, 3/8NPT
3x 3000psi input regulators. One is "Matheson" brand, model 3800. Another one has a "Matheson" brand valve attached to it. The other brand sticker on the regulator knobs might be an earlier version of the Matheson logo, but my Google searching skills are failing me on that one. Calibration stickers are from 1982.

I presume the ARO/Parker stuff is for shop air stuff, but the high pressure gauges are lost on me--could they be used for home brewing / keg setups for the CO2 / Nitrogen?

Happy Memorial Day!

 

[larry_g]

I'm thinking the last one is a baloon filler

lg
no neat sig line

 

[trainer]

wouldn't be a cO2 regulator for beer or soda because carbon dioxide is 800 psi in the tank and generally under 30 on the outlet side

 

[JMcFly]

I'm thinking the last one is a baloon filler

lg
no neat sig line

looks like one for sure.