Mouth Breather
Contributor
I figure I can put some standard valves on these and get them hydro'd. Am I wrong? Formerly for firefighter apparatus
Scott stamped tanks
- Thread starter Mouth Breather
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'Don't see born on date in picts...If before '90, then likely made from bad 6351 alloy. Cylinder is also is Low Pressure 2216 PSI.
OP
Mouth Breather
Contributor
They were last hydro'd in 98-99 so no problem there. They'd be good for beach dives.
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They are thin wall & high water capacity, so super buoyant. Thus, not really desirable as scuba tanks.
The necks are mostly likely 7/8"x14 UNF so the same valves as an old exemption series steel tank. Those will be 300 bar DIN and super annoying.
They are probably 45cf - so small, buoyant, with annoying 300bar valves. They might be cheap or free but after hydros and new valves you are going to be into them for $100+ each for 45cf cylinders that take an annoying amount of lead to sink.
Honestly you are better off recycling these for the scrap aluminum.
OP
Mouth Breather
Contributor
With the bad alloy cylinders, it's not about the last hydro, it's all about the first/born-on date.
- Messages
- 14,067
- Reaction score
- 11,193
- Location
- Port Orchard, Washington State
- # of dives
- 1000 - 2499
Based on the dimensions or?
Scott rebranded Luxfers were mostly the 7/8" UNF necks. It's (remotely) possible they are 3/4" NPS or even some other thread though.
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