A little help with tank ID...

Leftyjeb · May 28, 2014

Hi all,

I just bought a couple of used tanks pretty cheap. I know they need hydro (and the seller said he'd refund me if they failed or were scrap).

I believe these to be '01 Luxfer AL 80s. From what I've read, these shouldn't be rejected at the door at my LDS, right? (Whether they fail hydro is a different story).

Can someone with some expertise verify? Many Thanks, ScubaBoard!

justcallmecam · May 29, 2014

Yes you are correct, get the VIP + hydro and you won't have a problem. they are 01 Luxfer US S80's, 6061.

PfcAJ · May 29, 2014

+1

2001 Luxfers are good to go after hydro and vip.

Leftyjeb · May 29, 2014

Sweet! Thanks.

kwinter · May 29, 2014

BTW, what do you consider "pretty cheap?" I got some of those exact same tanks for $50 each including DIN valves. And some of them were still in hydro.

Leftyjeb · May 29, 2014

You win. I got them for $60 each and they need Hydro.

DogDiver · May 29, 2014

My aluminum cylinders are scraped when it's time for their third hydro. ie 15 years old. Too much metallurgical stress the alloys. On the other hand I have steel cylinders with a born date of 1970. Steel if well cared for can last a lifetime. Just my opinion.

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Rich Keller · May 30, 2014

I just picked up a couple of cheap aluminum tanks and neither says who made them or how big they are. The original markings are below. Any idea who made them? I am guessing the "WK" is a reference to the manufacture but I do not know who that is.

CTC/DOT-3AL 3000-J 91421
WK 5A87

CTC/DOT-3AL 3000-J 80227
WK 4A87

Namreg 58 · May 30, 2014

Rich Keller:
I just picked up a couple of cheap aluminum tanks and neither says who made them or how big they are. The original markings are below. Any idea who made them? I am guessing the "WK" is a reference to the manufacture but I do not know who that is.

CTC/DOT-3AL 3000-J 91421
WK 5A87

CTC/DOT-3AL 3000-J 80227
WK 4A87

The WK refers to Walter Kidde who used to make cylinders and some of the finest compressors ever made.

Rich Keller · May 30, 2014

Namreg 58:
The WK refers to Walter Kidde who used to make cylinders and some of the finest compressors ever made.

Thanks. Are there any issues with the alloy used to make these tanks like the early Luxfers?

A little help with tank ID...

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