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Updated SCUBA tank specifications list -- in PDF and spreadsheet

Discussion in 'Tanks, Valves and Bands' started by tmassey, Jan 5, 2019.

  1. tmassey

    tmassey Barracuda

    # of Dives: 200 - 499
    Location: Shelby Township, MI USA
    372
    367
    63
    Hello!

    I have wasted my entire day re-working a SCUBA tank specifications list. I've been working with the Huron Scuba list for *years*, but I'm suspicious of the information: where did it come from? Also, it includes a lot of junk I've never seen in real life, as well as tanks that no one should *ever* dive. So, I completely reworked it.

    My favorite part is that I've included links to where the data came from. In most cases, it's straight from the manufacturer, or at least a major US distributor. (So Blue Steel and XS Scuba for Faber, for example.) I've also added a few extra columns. The most important is the water volume of the tanks. With that, you can figure out the true capacity of the tanks -- and not just with air.

    I'm including a PDF here. This is just the simple list with the water volume added and all numbers updated. This is for quick and easy reference. But I'm also including the spreadsheet I created as well. This has several additional columns. It has a column that calculates the true air capacity of the tank (including compressibility factor) from the stated water volume at rated pressure and the difference between rated pressure and calculated, as well as a column showing EAN32 capacity at 3600 PSI, and tank factors based on both the air and EAN32 capacities.

    If all of that sounds too complicated, simply hide or delete columns E through J. And that's what the PDF is! :)

    I've also both expanded and cleaned up the original list. I've added Worthington and Metal Impact tanks, and I've removed some goofy tanks (like Heiser tanks and weird MP tanks). The biggest items removed are the OMS steel tanks. I really wish I had a reference for these, but I can find nothing of verifiable value. It doesn't help that OMS doesn't actually make tanks, and they changed suppliers over the years... so without verification, I simply removed them. If you have a verifiable source (not just some random list on the Internet!), let me know!

    There's more notes and comments in the spreadsheet, so check it out for further information.

    I'd love any suggestions or thoughts you might have -- or sources for manufacturer specs, particularly for the OMS steel tanks, but also early PST tanks. I only have references for the E7/E8 (3442) tanks. If you have anything from the manufacturer for the LP or true-HP (3500) tanks, that would be good too.

    P.S.: Grrr! You can upload MS Office formats, but *NOT* Open Document formats! :( So, I've exported it to Excel format. Hopefully it'll be properly formatted for you... It expanded everything to a million decimal points, but it will still work.
     

    Attached Files:

  2. tmassey

    tmassey Barracuda

    # of Dives: 200 - 499
    Location: Shelby Township, MI USA
    372
    367
    63
    Here's the data as well: hopefully this will allow some poor lost soul to find this in the future and recoup some of my wasted day! :)

    Code:
    Tank Name             Svc Pres  Capacity        Diameter           Empty Wt         Buoy Full
                                           Vol (L)          Length             Buoy Empty                 
        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
    Luxfer S13S           3000     13.2      1.9     4.37    12.87     5.94    -0.72    -1.71
    Metal Impact S13      3000     13.2      1.9      4.4     13.1        6     -0.9     -1.8
    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
    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 S30      3000       30      4.3     5.25     19.3    12.25        0     -1.5
    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
    Metal Impact S40      3000       40      5.7     5.25     24.6     15.3      2.5     -0.7
    Catalina S45          3000       45     6.46     6.89     17.7     20.3      0.5     -2.8
    Catalina S50          3000       50     7.18     6.89     19.4     21.8      1.2     -2.4
    Luxfer S050           3000     48.4     6.95     6.89       19     21.2      1.3     -2.4
    Metal Impact S50      3000     48.4      6.9      6.9       19     21.3      0.8     -2.5
    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
    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
    Metal Impact S63      3000       63        9     7.25     21.9     26.9      1.7     -2.4
    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
    Luxfer S080           3000     77.4    11.11     7.25    26.06    31.38      4.4     -1.4
    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
    Catalina S80          3000     77.4    11.11     7.25     25.9     31.3      4.1     -1.6
    Catalina C80          3300     77.4    10.24     7.25     25.5     34.7        0     -5.8
    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
    Metal Impact S100     3300     98.8     12.2        8     26.2     41.1     -1.9     -4.6
                                                                                    
          STEEL                                                                     
    Faber FX15DV          3442       15        2     3.94    14.17      6.6    -1.21    -2.42
    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
    Faber L50DVB          2640     48.7        8     5.51     25.2     18.9     1.24    -2.43
    PST E7-65             3442       65     8.28     7.25    16.75     23.2     -1.5     -6.4
    Worthington X7-65     3442     66.4      8.2     7.25     16.7     25.1     -3.9     -8.7
    Faber M71DVB          3300       71        9     6.84    20.47     28.7      0.9    -4.35
    Faber FX71DVB         3442       71        9     6.73    21.26     24.7     -1.4    -6.97
    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
    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
    Worthington X7-10     3442     99.5     12.2     7.25     22.7     33.1     -2.5      -10
    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 M100DVB         3498      100       12     7.24    24.21     38.7    -6.69   -14.11
    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
    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
    Faber L120DVB         2640      120       19     8.02    29.33     44.9     4.07    -4.87
    Worthington LP121     2640      120     18.9        8     29.2     49.9       -2    -11.1
    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 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
    PST E8-130            3442      130     16.6        8    25.56     42.2     -4.8    -14.6
    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
    Faber FX149DVB        3442      149       19     8.02    29.53     46.9     2.35    -9.41
    PST E8-149            3442      149    18.98        8    29.37     47.5     -1.7    -12.8
    
     
  3. Compressor

    Compressor ScubaBoard Supporter Staff Member ScubaBoard Supporter

    # of Dives: 1,000 - 2,499
    Location: NYS
    2,770
    1,193
    113
    Thank you @tmassey. Appreciate it.
     
  4. StefinSB

    StefinSB Manta Ray

    # of Dives: 200 - 499
    Location: Santa Barbara, CA
    613
    341
    63
    Great work thank you.

    You may want to check the Fabers. I have LP85s ( the white ones) and they are for sure not -1 empty but more +0.5 empty (with valve).
     
  5. CuzzA

    CuzzA Solo Diver

    10,225
    11,700
    113
    Yeah, my grey Faber LP108's are not 3 lbs positive empty. You might want to note color on the coated steels.
     
  6. tmassey

    tmassey Barracuda

    # of Dives: 200 - 499
    Location: Shelby Township, MI USA
    372
    367
    63
    Yeah... I just checked the manufacturer source:

    Blue Steel Scuba - Cylinder Specs

    LP85 is +2.32 empty. LP108 is +2.98. Per the spec, that is without valve.

    Don’t argue with me: I took it from the manufacturer spec. Argue with them! :) (And that’s a big reason why I redid this: to know where the info comes from.)

    I’m not saying that any of this is accurate. I *am* saying that each and every line is direct from a manufacturer-supplied resource (except for the Catalina S20, which only DGX has ever heard of — but they actually sell them today, so I added it).

    As for color: I want as few lines as possible that supply as much meaning as possible. That’s why I dropped the Faber epoxy tanks that were replaced by HDG. There is only a tiny difference, and it saved like 12 confusingly-similar lines. Same for the 3500-PST’s. If you want highly-specific info, use the sources. And remember that these tanks have varied over their decades-long production runs—and have more tank-to-tank variation within a model anyway!
     
    Kensei likes this.
  7. tmassey

    tmassey Barracuda

    # of Dives: 200 - 499
    Location: Shelby Township, MI USA
    372
    367
    63
    One other thought about this data.

    The motivation behind this was largely finishing my full cave class this week. As part of dive planning, there is a focus on calculating thirds as well as dissimilar tanks, including tank factors. Plus there were various discussions on tank similarities and differences: ‘HP117’s are relabeled LP95’s; LP104 and 108’s are the same tank; HP100’s are smaller than LP85’s’ and so on.

    Of course, things are a lot more complex than that. But it was DGX’s post on calculating tank capacity — including real gas compressibility — that pushed me over the edge. How big is a tank? It matters what the volume is, what the pressure is *and* what the gas is. And how much of that is taken into account when the manufacturer says, “This holds 100 ft3.”

    So I built the spreadsheet to find out how much this matters. In the end, not much: a couple of percent at the most. There’s a couple of tanks that are farther out of whack (something is wrong with the stated numbers for the Metal Impact 100...), but for the most part things are pretty even.

    And now you can at least know where the numbers come from and how much tolerance there is between the different numbers.
     
  8. Mike1967

    Mike1967 Manta Ray

    # of Dives: 50 - 99
    Location: Victoria, Australia
    642
    236
    43
    So these specs are wrong? E17BAE4B-01A7-4256-BD11-5270B56491E1.jpeg
     
  9. tmassey

    tmassey Barracuda

    # of Dives: 200 - 499
    Location: Shelby Township, MI USA
    372
    367
    63
    @StefinSB and @Mike1967 : I have no *idea* what is "right". What is "right" anyway? :)

    What I *can* tell you is exactly what the info I have is, and most importantly, *where* I got it from.

    In the case of the LP Fabers, that information came from Blue Steel. Here's the link again: Blue Steel Scuba - Cylinder Specs

    @Mike1967 : Where did you get that snippet? From the manufacturer? If not, then how do we know where *they* got it from? If so, give us a link so we can take a look! And the info you've included is incomplete: it doesn't have service pressure.

    I can also say this: your snippet is not for an LP85. To get 85CF from 10.5l water volume requires a service pressure of >3300 PSI. (85CF=2407l. 2407l/10.5l volume = 229 ATM. 229 ATM *14.7 PSI = 3366 PSI) In other words, the tank you're cutting and pasting about is *NOT* an LP85.

    See why knowing where the information came from *and* having all of the information is so important? :)
     
  10. Mike1967

    Mike1967 Manta Ray

    # of Dives: 50 - 99
    Location: Victoria, Australia
    642
    236
    43

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