Another Old Scubapro Tank ID Question

[mahjong]

I have just purchased two old Scubapro Faber galvanized steel tanks, each born in 1984, on which I cannot get a positive ID. The person from whom I bought them was told they were 76's (not 72's and not 80's). My LDS technician guessed at 74's or 75's. The height of the tanks (w/o the valve) is 26 3/8". The diameter is 6.84". Here are the markings:

1. Scubapro DOT 3AA 2400 84/9007/73 M8303 Faber Italy 3 A 84 +
2. Scubapro DOT 3AA 2400 84/9008/73 M8303 Faber Italy 3 A 84 +

Does anyone know how Scubapro listed these tanks in their catalog of the day?

 

[halocline]

I don't, but if it helps my 72s are about the same diameter and 1" shorter. I bet these tanks would make GREAT small doubles. Are you certain that they are skinnier than 85s, they sound a lot like LP85s.

 

[mahjong]

Yes, the old 72's are a bit shorter, and they are also 2250 psi, no?

Yes, these are close to the OMS LP85's, which I believe are listed to be 7" in diameter. But the most generous diameter measurement of these tanks is 6.923"; they are definitely not 7". The OMS LP85's are also a good 1" shorter than these.

I don't, but if it helps my 72s are about the same diameter and 1" shorter. I bet these tanks would make GREAT small doubles. Are you certain that they are skinnier than 85s, they sound a lot like LP85s.

 

[rjack321]

They nominally 26" by 7", 2400+ psi = Faber 85s.

 

[mahjong]

I certainly would be psyched if these were 85's. I'd love an old Scubapro catalog verification.

They nominally 26" by 7", 2400+ psi = Faber 85s.

 

[rjack321]

I certainly would be psyched if these were 85's. I'd love an old Scubapro catalog verification.

Those aren't even "old"; I have 2x lp85s in the garage with those dimensions.

Faber has never been good about imperial measurements and left the cf marketing up to yankee advertising. Which is why the different distributors will often round up to different values ie 95s vs 98s.

 

[mahjong]

As for Faber and imperial measurements, you certainly have that right! Even today!

So these are 85's!! Love it!! Perfect for me!!

Those aren't even "old"; I have 2x lp85s in the garage with those dimensions.

Faber has never been good about imperial measurements and left the cf marketing up to yankee advertising. Which is why the different distributors will often round up to different values ie 95s vs 98s.

 

[mahjong]

I wrote to Scubapro and they replied, stating that these tanks are 75.8 cu ft.

The person who sold them to me was correct, then, in saying that he had always been told that the tanks were 76's. Nice tanks...about as much air as an AL80, and I assume the buoyancy characteristics are a bit better.

 

[rjack321]

Well here in the States that's still called an lp85 at 2640psi which is the plus rating for 2400. And yours are/were plus rated. At 2400psi it holds about 78cf.

People have sold/marketed Faber mp72s (3000+ psi) and fx72s (3442psi) here in the US but there's no "75.8" Those are the cubic foot sizes between lp85s and lp50s going back to way before the born date of your cylinders. The Italian translation of cubic foot is a bit off.

 

[mahjong]

So are you saying that these tanks actually hold 78 cu ft of air when filled to 2400 psi and 85 cu ft of air when filled to their plus rating of 2640? In other words, they were marketed here according to actual capacities and the Italian specs were off?

Since you mentioned the mp 72's, I have an older (1985) Scubapro one (as I stated in a previous post). It is about 21" tall and about 6.9" in diameter. The engravings are: "Scubapro DOT-3AA 3000 85/9035/ 101 M8303 Faber Italy 5 A 85 +"

What is the actual air capacity of this tank?

Well here in the States that's still called an lp85 at 2640psi which is the plus rating for 2400. And yours are/were plus rated. At 2400psi it holds about 78cf.

People have sold/marketed Faber mp72s (3000+ psi) and fx72s (3442psi) here in the US but there's no "75.8" Those are the cubic foot sizes between lp85s and lp50s going back to way before the born date of your cylinders. The Italian translation of cubic foot is a bit off.