First Stage with 1/2" LP Port- What do YOU do?

Discussion in 'Regulators' started by beanojones, Oct 2, 2008.

  1. beanojones

    beanojones Great White

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    So what do you do with the 1/2" ports?

    I am collecting USD SEA first stages and Old Apeks 1st stages and they both have the annoying 1/2" lp ports. So what do you do with those? Do you plug them, or adapt them?
     
  2. Luis H

    Luis H Scuba Instructor

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  3. beanojones

    beanojones Great White

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    If I happen to not be using that port, what's your feeling on leaving that adaptor (thanks for the link to that BTW) in, and just plugging it?
     
  4. Luis H

    Luis H Scuba Instructor

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    Some will say that you are adding one extra O-ring that can fail, but being that it is a static, tightly captured O-ring (if properly installed), I don’t see any problem with that.

    I would probably live the adapter in place if I ever think that I may want to use that port. That way I know it is already a standard 3/8” LP port.

    I use many vintage regulators with 3/8” HP ports and I often have to use adapters to the 7/16” fitting. I have never had a problem with an adaptor.
     
  5. Ken abucs

    Ken abucs Surface Interval Member

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    You can buy hoses with 1/2" fitting on the 1st stage end, and a regular 2nd stage connector on the other end. That way you can take advantage of the "high flow" properties this port is supposed to give.

    I have just such a hose in a 5' length I no longer need. Make me an offer if you're interested.
     
  6. Randy43068

    Randy43068 Orca

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    I have that adapter on one of my recreational APEKS regulators. I'd rather have a single hose, however, as mentioned it's captured and risk of failure is minimal to none. I'd think there is more risk of failure in the Orings at the connection between the hose and your second stages.

    I say use the adapter if you already have the hose.
     
  7. beanojones

    beanojones Great White

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    Is Dive Rite express the only place to get 1/2" port plugs? I cannot seem to google this effectively.
     
  8. LeadTurn_SD

    LeadTurn_SD Loggerhead Turtle

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    Agree with Randy and Luis H.

    Since 3/8" LP hose is more widely available than 1/2", I decided to use the 1/2 --> 3/8 adapter. I'm using the adapter on a couple of Mares Abyss regs (they have 1/2" port size for primary LP ports) so that I could use 3/8" 5' Miflex hoses.

    Beano, you might try calling ScubaToys. They sell and service Mares regs, and thus may have the 1/2" port plugs for them.

    Good luck.
     
  9. Peter_C

    Peter_C Orca

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    I use the 1/2" port on my gals reg for a Halcyon 7' hose. The H hoses are some of the most flexible out there without being to flexible (Mi-flex).
     
  10. Randy43068

    Randy43068 Orca

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    Most online places have these adapters, even LP.

    Give them a call, or shoot 'em an email.
     

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