Client X has a few dozen liquid cylinders that they are considering repairing and want to be sure that they aren’t too old to be worth the trouble. So- Their very good question:
“Is there any way to tell from the data plate what year a DOT 4L- class vessel was manufactured?”
I’ll give you what I got from some quick targeted research and will appreciate any information you might have to share with the rest of us:
TAYLOR-WHARTON- The last letter in the serial number identifies the year of manufacture.
A=1985 to H=1992
J=1993 to N=1997
P=1998 to X=2005
BB=2005 to FF=2009
UCAR- Purchased by Taylor-Wharton in 1985 so anything UCAR is 1985 or before
CHART/MVE- Beginning in 1995 the Year of Manufacture was inserted right in the middle of the serial number. So this is the most obvious… 97, 99, 02, etc. If the unit is before 1995 then the only way to know is to call the number and ask.
CSI- Purchased by Chart in 1995 (?). No defined date code system.
CYLTEC- No date code imbedded in the serial number, but virtually all are 2005 or newer.
“Is there any way to tell from the data plate what year a DOT 4L- class vessel was manufactured?”
I’ll give you what I got from some quick targeted research and will appreciate any information you might have to share with the rest of us:
TAYLOR-WHARTON- The last letter in the serial number identifies the year of manufacture.
A=1985 to H=1992
J=1993 to N=1997
P=1998 to X=2005
BB=2005 to FF=2009
UCAR- Purchased by Taylor-Wharton in 1985 so anything UCAR is 1985 or before
CHART/MVE- Beginning in 1995 the Year of Manufacture was inserted right in the middle of the serial number. So this is the most obvious… 97, 99, 02, etc. If the unit is before 1995 then the only way to know is to call the number and ask.
CSI- Purchased by Chart in 1995 (?). No defined date code system.
CYLTEC- No date code imbedded in the serial number, but virtually all are 2005 or newer.
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