WTB: K-Valve for Old (1959 USD LP72) tank

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Culcuhain

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I believe these are the 1/2" thread tanks.
Looking for a good Valve ready to go. I might go for one needing servicing.
Send PM with price shipped to 75089.
thanks!
Lee
 

Akimbo

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Are you sure the tank takes a O-ring sealed valve? A lot of the older steels took a tapered valve that you used teflon tape on.

We are talking about tapered ½" CGA (Compressed Gas Association) thread, similar to tapered NPT (National Pipe Thread in the US). Tapered tank threads usually use Teflon tape as a pipe-dope or lubricant — not a sealant. US Divers (now Aqualung) introduced the ¾" straight NPT O-ring sealed straight thread in 1960, which is currently the standard in the US.
 

sealark

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Your older usd 72 tanks without o rings are 1/2 in. tapered pipe threads.

Sent from my DROIDX using Tapatalk
 

Akimbo

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Culcuhain

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Thanks guys.
I will get it ordered today!
 

cohenandy

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I have valves; if you are still in the market and can confirm the if you need the o-ring or teflon tape type, I'll send you a pic.
 
https://www.shearwater.com/products/perdix-ai/

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