Steel 72 Question

[lonestardiver]

I was given a pretty nice steel 72 which has a ½”NPT neck. I was wondering if that neck could be machined and threaded to accomodate 3/4" valve. Has anyone heard of this being done?

Thanks

 

[DA Aquamaster]

No. It can't - it would not be legal to do so. I have also never heard of anyone doing it. In any event the cost of doing it would be about the same as the cost of another steel 72 with a 3/4" neck.

 

[lonestardiver]

Thanks for the info....

Do you know if there is valve made currently that would fit this tank or do I need to go find the an older valve? If I have to go with the older valve, could anyone recommend a brand/type that I would most likely could have serviced by a dive shop?... Or does it matter?

Thanks,

 

[halocline]

If you post this question on vintagedoublehose, or even on the vintage forum on SB it's more likely you'll have some success in finding a valve.

 

[lonestardiver]

Great Idea!... Closing thread.....

 

[Hallmac]

You could also take a 3/4 thread to a machine shop and have it turned down to fit.

 

[lonestardiver]

I didnt even think about that....

Have you had this done? Is it pricey?

 

[CivilE]

Give John a call at North East Scuba Supply! I ordered a 1/2" valve from him for one of my 72s about a year ago. Double check to see if the tank/valve has straight or tapered threads first (I can't remember which way was which for me right off...).



CivilE

 

[lonestardiver]

Thanks CivilE....

These are new valves? or refurbished older valves...? This is my first 72 so im not real familiar....

 

[CivilE]

I think that they were new valves that they had made. Again, check the threads first... I had a problem when I ordered mine (because I didn't check), but John was absolutely great to deal with. Customer service was out of this world!

I am actually getting ready to place an order for some more stuff with them shortly