help identifying a steel tank!

[scottfiji]

My friend has an old steel tank (recently tumbled and filled)

however, he doesn't know its capacity or buoyancy when empty

specs:
weight (when full, including valve & boot) 36.2 lbs
height (not including valve) 21 3/4 inches
diameter of tank: 7 1/8 inches
service pressure: 2400 (+10%)

It also says "GALV" on the tank
If the make is on the tank, I can't see it!

Any idea how many cubic feet of air it holds, and what the buoyancy is when empty?

thanks alot!
Scott

 

[Rick Murchison]

Sounds like approx 65CF - could you post everything stamped on the neck & shoulder?
Rick

 

[scottfiji]

Sounds like approx 65CF - could you post everything stamped on the neck & shoulder?
Rick

thanks rick! if it is a 65, let me know if you have a guess on the buoyancy when empty also...

in order, going around the tank:

6A93+
DOT-3AA2400
A645657
GALV

Scott

 

[jerryn]

I agree, Steel 65. They are usually right around neutral when empty, but on the older ones there was a lot of variation so you will have to experiment.

The book says -1.5 empty....but I would not put too much stock in it.

The GALV indicates galvanized steel. I don't have my serial number code guide here but I would guess it is probably PST or a distributor of PST under a house brand.

These are great tanks for beach dives. I have two Norris steel 65's which I use regularly.

Jerry

 

[Otter]

I agree, Steel 65. They are usually right around neutral when empty, but on the older ones there was a lot of variation so you will have to experiment.

The book says -1.5 empty....but I would not put too much stock in it.

The GALV indicates galvanized steel. I don't have my serial number code guide here but I would guess it is probably PST or a distributor of PST under a house brand.

These are great tanks for beach dives. I have two Norris steel 65's which I use regularly.

Jerry

Since the question has been answered....
[Hijack] How do you like the Norris?[/Hijack]