What kind of kegs are these?

I bought these strange fat little kegs the other day and I'm don't know what they are. They don't have pressure release valves so I'm scared to open them.
strange kegs on Flickr - Photo Sharing!

That a good question...I've never seen them before. My first thought was converted milk cans but either way just take screw drive and press down the poppit valve so you can release the pressure.

Use a screw driver on the "IN" port. If the in is for gas then the dip tube should be above the liquid and you won't get a bath.

Look like some sort of milk tank or something?

It might be for Liquid O2, or N2 is it insulated?

ive seen milk cans with that same top but never ones that small

Almost looks like an old beerline cleaning can. Hard to see in the pics.

Upon further inspection I see they are Firestones. I still have many questions about them though. Why does one have a thermometer in the out valve and why is it burned to heck on the bottom. Am I going to be able to find replacement seals for them or will the corneilus ones work?
Isla February 2009 157 on Flickr - Photo Sharing!

Why does one have a thermometer in the out valve and why is it burned to heck on the bottom.

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I'd guess someone was trying to make a still out of it.

I have seen similar ones like these but they were taller, and those were used for ICEE Syrup.

it looks like an old kersone(sp?) can to me. but i'm not an expert

david_42 said:

I'd guess someone was trying to make a still out of it.

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My first thought seeing it was it would make an awesome bottom for a still. I don't have any idea what kind of kegs they are though.

Am I going to be able to find replacement seals for them or will the corneilus ones work?

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The Cornelius o-ring kits should work, but all metal parts, poppets, plugs, tubes, etc are different. They are all available, but it takes some looking. Northern Brewer and MoreBeer both have some Firestone parts.

You will probably need a new poppet to replace the thermometer and possibly a new plug. Don't worry about the pressure relief, kegs can take over 100 psi. You can buy and add relief valves, but they are a bit expensive.