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Vintage J-Vlave's HP SPG Port thread?

Discussion in 'Vintage Equipment Diving' started by ScoobieDooo, Mar 29, 2005.

  1. ScoobieDooo

    ScoobieDooo Manta Ray

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    Question: Did J-Valves in the 70's sport a 3/8" thread on their HP SPG Port vs today's SPG's?

    I just tried to connect my modern Genesis SPG to a Vintage Dacor-clone J-Valve with HP SPG Port and it doesn't go...

    My guess is a I need a 3/8" Male to 7/16" Female Adapter to accomplish this?

    ??
     
  2. JS1scuba

    JS1scuba Dive Shop

    # of Dives: 5,000 - ∞
    Location: Arizona, SoCal, World
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    Yes, you will find many of the older J-valves and K valves had a port for an SPG. This was due to the fact that double hose regulators did not have a port for any gauge. You will need an adapter if you want to even use that valve.

    Regards,
     
  3. FredT

    FredT Loggerhead Turtle

    # of Dives: I'm a Fish!
    Location: The remains of the MS Gulf coast
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    Alternately you can just add a 3/8" threaded HP hose and eliminate the extra failure point. They are still available to service older regs, but a bit scarce in the LDS. Any shop can order you one from any of about 4 sources I know of. If they won't, find a new shop!

    The thread was changed to prevent folks from screwing a LP hose into a HP port. That combo makes quite a racket. :wink:
     
  4. ScoobieDooo

    ScoobieDooo Manta Ray

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    Thanls FredT,
    I thought it WAS a 3/8" thread from what I saw...
     
  5. ScoobieDooo

    ScoobieDooo Manta Ray

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    OK, so...
    I am seeking some nice older US Diver's SPG / PSI Gauge w/HP Hose with the older 3/8" thread vs. today's 7/16" threads. I could just have my LDS order the HP Hose but I still need a SPG as well...

    I'm seeking one that functions and is in VG to EC condition. E-mail me that you have, etc. Top dollar paid!

    Thanks,
     
  6. FredT

    FredT Loggerhead Turtle

    # of Dives: I'm a Fish!
    Location: The remains of the MS Gulf coast
    1,507
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    A new spg will fit the old hose!
     
  7. ScoobieDooo

    ScoobieDooo Manta Ray

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    Ahh,
    Better yet! Now to just FIND a shop that will order me one up!

    Sadly, my LDS's don't show much interest in vintage gear. They'd rather sell me a new K-Valve for $40 than assist with the repair or parts for my vintage stuff.
     

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