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Does band width matter?

Discussion in 'Tanks, Valves & Bands' started by OTF, Apr 2, 2021.

  1. OTF

    OTF Contributor

    # of Dives: 200 - 499
    Location: same ocean as you
    443
    592
    Talking about the Z dimension of the bands themselves. Is bigger significantly stronger or more stable? Are the bigger ones required for heavy tanks or face-sealing manifolds? Does it matter at all?

    Couple of pics from the internet for reference:
    725-Stainless-Steel-1-Tank-Bands-Double-Twinset.jpg
    VS.
    dx-705580a_1.jpg

    Thanks!
     
  2. Basking Ridge Diver

    Basking Ridge Diver Solo Diver

    # of Dives: 200 - 499
    Location: New Jersey
    1,964
    1,008
    No Bandwidth does not matter.
    I use both sizes it is tied into the back plate - when I carry mine they stay together - independent doubles with no slipping or shifting.
     
    dead dog and OTF like this.
  3. broncobowsher

    broncobowsher Solo Diver

    1,923
    1,399
    The only thing I might see better about wide ones would be to mitigate racking. If you 'dropped' the twins and one tanks hits the ground before the other. Providing the bands are tight enough to not slip, the wider should have better resistance to bending and loading the manifold.

    But normal reality, the same.
     
    rjack321 likes this.
  4. decompression

    decompression Instructor...seriously...

    # of Dives: 5,000 - ∞
    Location: Victoria, BC, Canada
    4,193
    1,726
    Given a choice, go thicker......
     
    rjack321 likes this.
  5. Akimbo

    Akimbo Just a diver Staff Member ScubaBoard Supporter

    10,640
    8,891
    I still have some galvanized steel bands that are only 1" wide (tall) and include diagonal slots for 1" webbing. Half-inch banding material used on shipping crates is strong enough in a pinch — don't ask how I learned this. :(
     
    OTF likes this.
  6. rjack321

    rjack321 ScubaBoard Supporter ScubaBoard Supporter

    # of Dives: 1,000 - 2,499
    Location: Port Orchard, Washington State
    10,998
    5,660
    The thinner bands are harder to assemble in perfect alignment, unless you have a perfectly flat table or floor (rarer than you realize).

    Dropping the doubles (more common than you imagine) on one tank or at an angle can "rack" them and shove them out of alignment. If bad enough you can bend the manifold slightly although you usually don't notice until assembly or disassembly at a later date. They rarely bend enough to leak.
     
  7. happy-diver

    happy-diver Skindiver Just feelin it

    # of Dives: 1,000 - 2,499
    Location: knowone here!
    1,926
    1,232
    "Band width matters!"


    It is very important to adhere to different band widths for different periods is diving

    Broad bands are just unnecessary, do not fit shorter tanks, and generally very ugly!
     

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