1/2 NGT 14 Solutions?

[Matt Decker]

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?

 

[tbone1004]

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.

 

[captain]

What's wrong with the original valves that can't be resolved.

 

[2airishuman]

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.

 

[rhwestfall]

Do you have a friend who is a competent machinist?