Faber ID numbers.

[CMarshall]

Hi all,

i'm looking for some help with the ID number and letters on my 3ltr 'faber steel' tank please,

Faber 97/9402/024 BS5045/1/CM/S TP348 BAR
KD-M25X2 BR.AIR 08.97 CP 232 BAR 15C 3.0L WT 3.7KG

I honestly dont understand what all these means... i brought the tank secound hand and need to know when the tank was made, does any of the above hold that info?

Best regards
Chris.

 

[Bob DBF]

For a start try these:

Crown Markings of a SCUBA Cylinder

http://diving.mlml.calstate.edu/pdf/FSO_suppinfo.pdf

The Scuba Expert Lets Get Wet: Deciphering Cylinder-Neck Hieroglyphics

Bob

 

[Scared Silly]

I do not know the UK/EU system but here is some info based on my US knowledge.


Faber - mfg

97/9402/024 - 97 year made, 9402 batch, 024 number within batch

BS5045/1/CM/S - British Standard 5045 Part 1 for construction of the cylinder.

TP348 BAR - Hydrostatic Test Pressure which is typically 5/3 of the charging pressure


KD-M25X2 - M25x2 neck thread size.

BR.AIR - breath gas, air

08.97 - date of first hydro

CP 232 BAR 15C - Charging Pressure 232 bar at 15 C.

3.0L - internal water volume of 3L

WT 3.7KG - cylinder weight (empty w/o valve)

 

[Kern]

CP 232 BAR 15C - Charging Pressure 232 bar at 15 C.

3.0L WT 3.7KG - internal water volume of 3L which when filled (15C@232 bar) gives 3.7kg of air.

A tank with a water capacity of 3lt & a fill pressure of 232 bar has 696lt of air.

A cubic metre of air weighs about 1.2kg at STP, 696lt is 0.696 cubic mt, 0.696 x 1.2 = 0.84kg of air.

I'm not 100% certain, but I think the WT 3.75kg may refer to the weight of the tank minus the valve.

 

[Scared Silly]

Good catch, you are correct that it is cylinder weight. I found another cylinder with similar info.

I was thinking that the cylinder was 13 liter cylinder which then the weight would about right for the amount of gas. I changed my post to reflect your input.

 

[Packhorse]

I think a 3L @232 bar is a 19cf tank.

 

[Kern]

I think a 3L @232 bar is a 19cf tank.

No, a 2.7lt WC tank at 207 bar is 19cft