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1/2 NGT 14 Solutions?

Discussion in 'Tanks, Valves & Bands' started by Matt Decker, Jun 17, 2021.

  1. Matt Decker

    Matt Decker Registered

    # of Dives: 50 - 99
    Location: Tyron, PA
    6
    0
    Besides the $100 XS Scuba valve, any other solutions to replacing 1/2 NGT 14 valves? I have two ancient steel 72s that are in really great shape except for the old pillar-style valves that are no bueno. I briefly toyed with the idea of trying NPT, but understand the extra threads on the NGT are there for a reason. Anyone find a good solution, or do you just pay up for the XS or turn the tanks into windchimes?
     
  2. tbone1004

    tbone1004 Technical Instructor ScubaBoard Supporter

    # of Dives: I'm a Fish!
    Location: Greenville, South Carolina, United States
    18,695
    11,151
    guys like @herman or @Luis H may be able to help you if they happen to have any laying around, but that's about your only hope.
     
    Bob DBF and Matt Decker like this.
  3. captain

    captain Captain

    11,119
    12,403
    What's wrong with the original valves that can't be resolved.
     
  4. 2airishuman

    2airishuman Solo Diver

    # of Dives: 100 - 199
    Location: Greater Minnesota
    2,634
    1,890
    You can probably fix the existing valve. They mostly take standard parts. The burst disk assembly should be replaced with a modern one with three outlet holes, see my thread on A&I from a few years ago for reasons.

    Otherwise, I have an extra 1/2" ngt valve right here that I would like to get rid of. Make offer. Comes with a modern 3750 PSI burst disk. The valve was overhauled several years ago.

    These aren't that hard to find. You should only have to spend $$$ for the xs scuba one if you want DIN.

    Also, for clarity, there really aren't any 1/2" NPT cylinder valves with scuba outlets that weren't built with the NGT thread specification in mind.

    9li8Woyc5mgBtTzA_szRo7XkTPXmc_Ocrz-96UNJGwAO3VGIqSVfDRfnFQ16S6mu2HI-AB6=w996-h1327-no?authuser=1.jpg
     
  5. rhwestfall

    rhwestfall Woof! ScubaBoard Sponsor

    # of Dives: 200 - 499
    Location: "La Grande Ile"
    17,154
    20,934
    Do you have a friend who is a competent machinist?
     

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