Updated SCUBA tank specifications list -- in PDF and spreadsheet

[Rred]

Bonus points if you can find any data on the old PSI "Steel 96" tanks. Some of us still ride these unicorns. DOT 3AA 3000psi and + rated, so presumably the 96 (I think it was sold as 96.2 or something) is with the 10% overfill, which is now problematic because there are apparently no records of what the tank actually was and is. Vintage 80's or early 90's and possibly the granddaddy of all steel hp tanks.

 

[OkByMe]

I admire the tenacity of the op for trying to put together a list, any list, from all the manufacture data. No matter how much work you put into it... It will be a life long adventure because manufacturers up the specs more often than I change my underwear. I have a pair of bothers on a manifold which are supposed to 85's and they ain't low and they ain't high pressure - they be mid-pressure. So scratch you noggin over this. Faber M8303 03/0430 012 03 (little triangle) 03 + XS Scuba

TO 3AA 209 DOT - 3AA 2730 REE 59

I crank them to 3000psi, only my back knows what they weight and and that varies from time to time - they are not "floaty"

What does continued in the next post mean when my text was truncated to omit some detail?

 

[OkByMe]

What does continued in the next post mean when my text was truncated to omit some detail?

TO 3AA 209 DOT - 3AA 2730 REE 59

I admire the tenacity of the op for trying to put together a list, any list, from all the manufacture data. No matter how much work you put into it... It will be a life long adventure because manufacturers up the specs more often than I change my underwear. I have a pair of bothers on a manifold which are supposed to 85's and they ain't low and they ain't high pressure - they be mid-pressure. So scratch you noggin over this. Faber M8303 03/0430 012 03 (little triangle) 03 + XS Scuba

TO 3AA 209 DOT - 3AA 2730 REE 59

I crank them to 3000psi, only my back knows what they weight and and that varies from time to time - they are not "floaty"

 

[Bob DBF]

What does continued in the next post mean when my text was truncated to omit some detail?

---

Continued in the next post

This is what shows up when I hit reply to your last post. I think you may have hit a control type key or something. Post in site support and direct them to your post and ask why.

Edit:
Before I hit post, I could read a lot of text not in your post or in my reply to you. I'm going to try to copy it below.

TO 3AA 209 DOT - 3AA 2730 REE 59

I admire the tenacity of the op for trying to put together a list, any list, from all the manufacture data. No matter how much work you put into it... It will be a life long adventure because manufacturers up the specs more often than I change my underwear. I have a pair of bothers on a manifold which are supposed to 85's and they ain't low and they ain't high pressure - they be mid-pressure. So scratch you noggin over this. Faber M8303 03/0430 012 03 (little triangle) 03 + XS Scuba

Also I see next inside brackets that may be a HTML command.

Good luck

Bob

 

[The Chairman]

What does continued in the next post mean when my text was truncated to omit some detail?

[next] TO 3AA 209 DOT - 3AA 2730 REE 59

I admire the tenacity of the op for trying to put together a list, any list, from all the manufacture data. No matter how much work you put into it... It will be a life long adventure because manufacturers up the specs more often than I change my underwear.  I have a pair of bothers on a manifold which are supposed to 85's and they ain't low and they ain't high pressure - they be mid-pressure. So scratch you noggin over this. Faber M8303 03/0430 012 03 (little triangle) 03 +  XS Scuba
[next] TO 3AA 209 DOT - 3AA 2730 REE 59

I crank them to 3000psi, only my back knows what they weight and and that varies from time to time - they are not "floaty"[/next][/next][code]

For whatever reason, you're trying to "quote" and are using "next" instead, so it doesn't show. I'm not familiar with that argument or how you got it. What did you press? I edited out the one and will edit out the others so it will be the quote argument rather than this one and then you can see it.

FWIW, I used the code argument so you could see the "next" arguments in situ.

 

[bakodiver391]

OMS paper catalog from 2002View attachment 539823

 

[bakodiver391]

OMS catalogue 2002

 

[tmassey]

OMS paper catalog from 2002View attachment 539823

Oooo.... Nice find! Spreadsheet and PDF updated (and the typo mentioned way early above) and attached, with text dump of PDF below.

This illustrates two points that many have said above:

A. "Tank X *is* Tank Y". If you look at the specs, *some* of the tanks (e.g. OMS and Faber) do share *some* of the characteristics. Yet some tanks that share certain key items (like water volume and tank weight) do *not* match other closely-related elements (like full capacity).

B. "Specs may or not may actually match what the actual tanks are at any given moment." Given that we *know* that at least some of the OMS tanks were made by Faber, and it's unlikely that OMS would have Faber change their manufacturing process, they *should* match. But they don't. And tanks with identical water volumes do not share identical gas capacities at full. So what good are the specs in the first place?

So. Take this list with a grain of salt. It's only as good as what the manufacturers tell us, and it seems that they're not above... 'creative' specs. Who knows where the truth lies? But at least this list is *traceable*: we know it's from the manufacturer. For what little good that may actually be!

Like I said, creating this spreadsheet was for me an exercise in really understanding the wide range of tanks and their characteristics. In the end, I found that the factors that I cared the most about were *amazingly* similar across a pretty broad range of tanks. So I relaxed, exhaled, and moved on.

Mods: would you mind replacing the items attached in Post #1 with these? Or at least add a note on the end that mentions that there's updates at this post number? Might as well keep those up to date, too... Thank you!

Text dump in next message: hopefully less than 10k characters...

 

[tmassey]

Tank Name             SvcPres CapFT3   VolL    DiaIn    LenIn  EmptyWtLb BouyEmp BuoyFull
                                                                             
    ALUMINUM                                                                  
Catallina S4          3000        4     0.57     3.21      7.8      1.9     -1.4     -1.6
Catallina S6          3000        6     0.87     3.21     10.8      2.6     -1.2     -1.5
Luxfer S006           3000      6.1     0.88     3.21    10.87     2.72    -1.03    -1.49
Metal Impact S06      3000      6.1      0.9      3.2     11.1      2.5       -1     -1.4
Metal Impact S08      2015      7.6      1.5     4.38     10.8      3.8        2      1.5
Catalina S13          3000       13     1.87     4.38     12.8      5.7     -0.9     -1.8
Metal Impact S13      3000     13.2      1.9      4.4     13.1        6     -0.9     -1.8
Luxfer S13S           3000     13.2      1.9     4.37    12.87     5.94    -0.72    -1.71
Luxfer S014           2015     13.7     2.82      4.4     16.2      4.9      1.8      0.8
Catalina S19          3000       19     2.72     4.38     17.7      7.8     -0.2     -1.5
Luxfer S019           3000     19.9     2.87     4.37    18.56     8.09     0.12    -1.37
Metal Impact S19      3000     19.9      2.9      4.4     18.6        8     -0.1     -1.3
Catalina S20          3000       20     2.88     5.25     13.8      9.2        0     -1.4
Metal Impact S30      3000       30      4.3     5.25     19.3    12.25        0     -1.5
Catalina S30          3000       30     4.31     5.25     19.9     13.6     -0.2     -2.4
Luxfer S030           3000       30     4.31     4.87    21.85    11.61      1.2       -1
Metal Impact S40      3000       40      5.7     5.25     24.6     15.3      2.5     -0.7
Catalina S40          3000       40     5.74     5.25     25.4     16.2      1.4     -1.5
Luxfer S040           3000       40     5.74     5.25     24.6     15.3      1.8     -0.7
Catalina S45          3000       45     6.46     6.89     17.7     20.3      0.5     -2.8
Metal Impact S50      3000     48.4      6.9      6.9       19     21.3      0.8     -2.5
Luxfer S050           3000     48.4     6.95     6.89       19     21.2      1.3     -2.4
Catalina S50          3000       50     7.18     6.89     19.4     21.8      1.2     -2.4
Catalina S53          3000       53      7.6     7.25     19.2     25.1      0.1     -3.8
Catalina C60          3300       60     7.96     7.25     19.9     27.3     -1.2     -5.6
Metal Impact S63      3000       63        9     7.25     21.9     26.9      1.7     -2.4
Catalina S63          3000       63     9.05     7.25     21.7     26.9      1.8     -2.8
Luxfer S063           3000       63     9.05     7.25    21.85     26.6      2.6     -2.1
Luxfer S072           3000     69.6       10      6.9       26     28.5      3.8     -1.4
Metal Impact AL72     3000     72.1       10     6.89       26     27.8      2.8     -0.7
Catalina C80          3300     77.4    10.24     7.25     25.5     34.7        0     -5.8
Luxfer S080N          3300     77.4    10.32        8    22.93    35.12     2.26     -3.6
Metal Impact S80      3000     77.4     11.1     7.25     26.1     31.9      3.3     -1.5
Luxfer S080           3000     77.4    11.11     7.25    26.06    31.38      4.4     -1.4
Catalina S80          3000     77.4    11.11     7.25     25.9     31.3      4.1     -1.6
Metal Impact S100     3300     98.8     12.2        8     26.2     41.1     -1.9     -4.6
Luxfer S100           3300     98.8    13.18        8     26.2     41.1      2.8     -4.6
Catalina C100         3300      100    13.22        8     26.5       42      2.2     -5.2
                                                                             
      STEEL                                                                    
OMS C8                2640     7.87      1.2     3.58    11.25        5    -1.61    -2.23
OMS C13               2640       13        2      3.9       14      5.9    -2.25    -3.31
Faber FX15DV          3442       15        2     3.94    14.17      6.6    -1.21    -2.42
OMS C20               2640       20        3      3.9     19.5      7.5     -1.5       -3
Faber FX23DV          3442       23        3     3.94     19.5      8.6    -0.66    -2.64
Faber L27DV           2640       25        4     5.46    14.43     11.7    -1.07    -2.95
Worthington LP27      2640       27      4.3      5.5     14.5     11.9       -1       -3
PST LP 45             2640       45     7.16      5.5       23     19.6     -0.5     -3.7
OMS C45               2640       46        7      5.5       23     17.6        0       -4
Faber L50DVB          2640     48.7        8     5.51     25.2     18.9     1.24    -2.43
OMS C50               2640       50      7.8      5.5     25.2    19.92     -1.5     -4.8
PST E7-65             3442       65     8.28     7.25    16.75     23.2     -1.5     -6.4
OMS C66               2640       66       10        7       21       25     1.67    -5.15
Worthington X7-65     3442     66.4      8.2     7.25     16.7     25.1     -3.9     -8.7
Faber FX71DVB         3442       71        9     6.73    21.26     24.7     -1.4    -6.97
Faber M71DVB          3300       71        9     6.84    20.47     28.7      0.9    -4.35
PST MP 72             3300     71.2     9.42      6.9    20.75       30       -6    -11.4
Worthington LP77      2640       77       12     7.25     23.2     32.5       -1     -6.8
PST E7-80             3442       80    10.19     7.25    19.75       26     -3.3     -9.3
Faber HP80-HDG        3442       80     10.2     7.25     20.8     28.3    -1.74    -8.05
PST LP 80             2640     80.6    12.86     7.25       24     34.4       -1       -7
Worthington X7-80     3442       81     10.1     7.25     19.8     29.9       -3       -9
Faber L85DVB          2640     81.1       13     7.01    25.98     31.2     2.32     -3.8
Worthington LP85      2640     82.9     12.8     7.25     24.7     36.8     -0.7     -7.1
OMS C85               2640       85       13        7       26       31        0     -6.7
Worthington LP95      2640     93.3     14.8        8     23.7     36.8     -0.7     -7.1
Faber L95DVB          2640       95       15     8.02    23.82     37.2     1.69    -5.37
OMS C98               2640       98       15        8       24       38        0    -7.73
Worthington X7-10     3442     99.5     12.2     7.25     22.7     33.1     -2.5      -10
Faber M100DVB         3498      100       12     7.24    24.21     38.7    -6.69   -14.11
PST E7-100            3442      100    12.73     7.25       24       32     -1.3     -8.8
Faber HP100-HDG       3442      100     12.9     7.25     25.3       34    -0.59    -8.41
Faber L108DVB         2640      108       17     8.02    26.77       41     2.98    -5.02
Worthington LP108     2640    108.6     16.8        8     26.5    45.95     -2.6    -10.7
OMS C108              2640      112       17        8       26       41       -1       -8
Faber HP117-HDG       3442      117       15        8     24.2     37.6     0.35    -9.12
PST E8-119            3442      119    15.17        8       24     39.3     -3.3    -12.2
PST E7-120            3442      120    15.29     7.25       28     36.6     -1.3    -10.3
Faber HP120-HDG       3442      120     15.3     7.25     29.1     39.2     0.65    -8.82
Worthington LP121     2640      120     18.9        8     29.2     49.9       -2    -11.1
Faber L120DVB         2640      120       19     8.02    29.33     44.9     4.07    -4.87
Worthington X7-12     3442    120.6     15.3     7.25     27.7     39.7       -2      -11
Worthington X8-11     3442      123     14.8        8     23.9     42.5       -2    -10.9
OMS C121              2640      125       19        8       29       45        0     -9.5
PST E8-130            3442      130     16.6        8    25.56     42.2     -4.8    -14.6
OMS C135              2640      131       20        8     30.7       47     0.75    -10.3
Worthington X8-13     3442    131.4       16        8     25.3     44.7       -2    -11.7
Faber HP133-HDG       3442      133       17        8    26.85     42.4     1.45    -9.08
PST E8-149            3442      149    18.98        8    29.37     47.5     -1.7    -12.8
Faber FX149DVB        3442      149       19     8.02    29.53     46.9     2.35    -9.41

 

[Oliver Ohlendorf]

Hey tmassey, great work. Whatever the comments are, I completely understand and agree about your point to use manufacturer specs (or other reliable sources). Here in Europe we always specify a scuba tank by its internal volume (in l). That makes gas calculations much easier (in my opinion).
https://www.scubaboard.com/community/members/tmassey.147398/
@those divers who are discussing about negative-positive buoyancy: The difference in weight between "full" and "empty" is exactly the same for all tanks with similar internal volume, hence I do not recognize any advantage or disadvantage under water.

@tmassey: There is something wrong with the Metal Impact S100. The difference between full and empty is only 2.70 lbs compared to 7.4 lbs for the other two S100. There is a minus at the empty buoyancy that probably is an error. Also the water volume of this cylinder cannot be correct. I know that this is the manufacturers specification but have a look at the two other S100 cylinders. According to the specification the Luxfer S100 has exactly the same specs (3,300 PSI, 98,80 cu ft), how could the water volume be different by one liter? You can see that there must be something wrong, as the difference from specs column shows.

I have made some mods to your XLS, incuding ISO units and some minor changes to the calculations. What do you think?

Cheers