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HP dive gauges bore size

Discussion in 'Dive Equipment' started by Julian, Feb 25, 2015.

  1. Julian

    Julian New Member

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    Probably a newbie question, and apologies if there's a collective groan when reading this from the experienced members!

    I've recently replaced two basic pressure gauges on my two sets of regs - one with a three console Suunto set, with pressure, depth and compass - the other with a depth/pressure two console Apeks one.

    When removing the old ones, they both had the expected pin-hole bore size...which I'd understood to be standard for HP hose connections.
    However BOTH new gauge sets have a large (few mm's) bore size....
    Is that correct/OK?

    Both were direct replacements into the HP port on my regs, and connect fine - just want to be safe rather than sorry, and defer to the experience here to tell me "yeah, that's fine!"

    Thanks,

    Julian
     
    Wibble likes this.
  2. j_b

    j_b Well-Known Member

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    Have you got the HP swivel? That is what will bring the bore size down... Its a little spindle with a small hole down the centre and a tiny o ring on either end.
     
  3. Julian

    Julian New Member

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    Thanks for your help. Would that swivel be on the gauge end, rather than the first stage end? The gauges came pre-assembled, with the boot etc. around it, so haven't looked at that nor dissassembled...the gauges are pretty fixed, and don't seem to swivel at all on the hose.....
     
  4. j_b

    j_b Well-Known Member

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    Sorry, I may be confusing the issue... The swivel is in between the hose and the gauge so if you have bought a fully assembled console and hose, the swivel will be in there already and everything will be fine :)
    Edit: hopefully ;)
    Odd that they don't swivel though as that is what the swivel is for lol
     
  5. furryman

    furryman hmmmm
    Staff Member UKD Supporter

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    you say "new": is that "new" as in straight out of a pack, or "new" as in "new to you but actually second hand of unknown origin?
    It wouldn't end prettily if you were attaching a low pressure hose to an HP port! And there are still some first stages around with the same size for HP and LP ports.
     
  6. Julian

    Julian New Member

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    Both brand new, and bought from Stoney Cove at the dive show in London last weekend. Might give them a ring tomorrow....
    Looking more closely, they do both swivel - just a bit stiff/notchy. Neither of the new gauges have been in the water yet, nor pressurised.
    They're connected to brand new first stages - Scuba Pro MK25s....simply swapped out the previous gauges for the new ones. Have successfully used the mk25 and the old gauges in a pool session once, no issues.
     
  7. j_b

    j_b Well-Known Member

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    You'll be fine then :)
     
  8. Julian

    Julian New Member

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    Excellent, thanks! Heading for a pool session in next couple of weeks, so will have a chance to try before the next proper expedition!
     

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