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Post by tcrbaker on Apr 16, 2007 11:32:56 GMT -8
I just purchased a nice older galvanized steel tank on Ebay. The tank is stamped "ICC-3AA1800 PSI","127K/CM2","3925DE WK" and "2@68+". The @ is actually a circle with an x or k in it. There might also be a character between the E and W in the third line. I interpret that it is an 1800 psi tank built Feb of 1968 and it is plus rated. It is about the size of a 40 or 50. Can someone tell me what size it is or any more info? Thanks Tim
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Post by duckbill on Apr 16, 2007 12:03:54 GMT -8
ICC- "Interstate Commerce Commission", predecessor to the DOT.
3AA- Chrome Moly Steel.
1800- yep, the working pressure (1980 psi with the 10% overfill, i.e. "+")
127K/CM2- don't know
3925DE- probably the serial number
WK- Walter Kiddie, manufacturer
2@68+ yep, first factory hydro in Feb. 1968, "+" good for a 10% overfill.
Size- Why don't you calculate it by the air equalization method?
Or, if you have it hydroed, ask for the internal volume figure, then calculate the capacity by multiplying that by the number of atmospheres at the working pressure.
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Post by duckbill on Apr 16, 2007 15:16:37 GMT -8
I think I'll take a stab at the "127K/CM2" marking:
Could be the model/catalog number, but it looks like an abbreviation for:
(127K) 127,000 psi tensile strength, (CM2) Chrome molybdenum 2, maybe a variation of the standard Chrome Molybdenum steel alloy.
Just a huge guess, but it looks like it fits. Hopefully someone will happen along who knows for sure.
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Post by Michel on Apr 16, 2007 17:39:50 GMT -8
Also, for my 2 cents worth,
The @ which looks like a circle with an "x" in it could be the
inspector's mark which many older tanks bore.
Regards,
Michel A.
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Post by william on Apr 16, 2007 18:02:43 GMT -8
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This is just Excellent Fellows. "Thank You for such Wonderfull Help here". William 
