Tank Size

[jeffe]

Judging by these numbers, what size would you think this tank is ?http://
TC-3AAM 184
111 A97 REE 98.7
81

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Any help appreciated.
jeffe

[jeffe]

Same tank, another set of numbers, these are a little more familiar looking.
DOT-3AA 2400
1A 627921 R
81
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[jeffe]

This is a view of the tank.
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The Tank is 29 1/2 " tall without the boot and valve. and is 8" across the bottom.
The tank has a current visual, Hydro, O2 clean decal and Nitrox / Safe air sticker.

[bgbill]

It is an LP tank, that is what the 2400 means, it is most likely a LP 120.

I have several OMS 121's and 125's and they are 29" tall and 8' in dia.

[jeffe]

I found two of these tanks at a flea market, they were so cheap I decided to take a chance on them. They were holding air.
Like bgbill, I felt like they were Lp 120's.
Hydro is 6/02, so I had them 02 cleaned and put them in service.
The funny thing is that all of the local dive shops I have taken them to ( three so far ) insist that they are 81 cu. ft. tanks and charge accordingly ! He , He, HE . I guess that here in the hills they just don't see many Lp 120's. :D

[TGuthrie]

Maybe 98's or 104's.

[jeffe]

Thanks tguthrie , I wondered, because of the 98.7 stamp.
If that's the case, i might not be rippin' the LDS off so bad on NITROX fills.:D

[bgbill]

I doubt it is a 98 or a 104, I have a PST LP100 and it is 27" Tall.

One of my dive buddies tanks are 95's and 104's and they aren't as tall as the Lp 120's.

[jeffe]

Unlike the first tank, the second one has only one stamping. It weighs 61.5 pounds Nitrox full. With boot & Dust cap.
DOT-3AA2400
1A 585607
81 1 97+
6/02

[FredT]

The REE number is used by a good hydro shop to renew the + rating. It's not a capacity question.

To get capacity for sure fill it with room temperature water and see how much it takes in cubic inches or gallons to fill it. Convert that number to expanded gas volume at whatever pressure you fill them to.
Alternately you can figure the volume of the tank's cylindrical section, neglecting the volume of the domed ends. use that number to figure volume as it will be about the same number ± 10% due to the volume of metal in the tank walls.


FT

[one_lucky_shot]

my bet is on LP 100. have one guy that brings it in, no exact marking as to size, no other shop knows.... but size comp to other tanks... it is about 100.

[swimndive]

Jeffe, From your description and what I can see in the photos, I'd say you've got yourself a couple of PST 120's.They measure a tad over 29" and weigh 50 lbs empty and are about a half pound negative in freshwater when empty. When filled to 3500 of 32% figure 63 pounds, to 2640 ONLY 60.

Monster tanks.

You can fill them forever to 3000psi, and there's no point in letting the guys who fill em where you live, know any different.

[3 Shots 1 Kill]

No doubt about it, they are PST LP 120's. I have one that I dive and most of the #'s match yours. In fact I have it for sale on member items. You said you got them cheap, how cheap? I like it because of the amount of air and the fact anyone can fill it to the top. The only downfall is the size. For some people it is too much tank.

[jeffe]

I really appreciate all the help.
When I saw the tanks in the flea market, they were priced at $70. each. We haggled one tank down to $50. The tanks were slightly dusty and I felt that the vendor had been holding them for some time. I continued on shopping in order to give the guy a chance to stew about it for awhile. When I came back by a couple of hours later, I told him if he would get right I would buy both tanks. We finaly agreed on $45. each for them. It makes me a little bit nervous when something is that cheep ! Both tanks had Nitrox stickers, dust caps and boots. Hydro was current, visual inspection expired.
I had been shopping for LP 120's on ebay, and knew they were bringing $175 to $225 each.
Thanks for all the input.
;)

[TGuthrie]

hell of a deal!!

[bgbill]

They are not LP 100's, they match the size of my 120's, 121's and 125's.

They are about 2 1/2" taller than my Lp 100, you got a hell of a deal on those tanks.

[f94gator]

WOW, that is an awesome deal!!

[one_lucky_shot]

very good deal. if it passed hydro it is one hell of a deal. new lp 120 is (shipping valve O2 ect) is well over 300 bucks each

[jeffe]

As luck would have it, it turned out well, for awhile there I just wasn't sure though.
Most my Mountain Homeboys don't " Habla SCUBA " !! :cool: