Industrial Pipe Markers Online Tutorial - Label Text Size
Learn About Label Text Size For Pipe Marking
Pipe marker text must be of a minimum size, based on the
diameter of the pipe.
Pipe / Covering
Outside Diameter
Min. Text Height
3/4" to 1-1/4"
1/2"
1-1/2" to 2"
3/4"
2-1/2" to 6"
1-1/4"
8" to 10"
2-1/2"
Over 10"
3-1/2"
Having an established minimum text height ensures that the text
will be legible. These are only minimum guidelines. It may be
necessary, in some cases, to use larger text--for example when the
pipe is located at a distance, and as a result the label has to
be read from farther away than normal.
The table to the right gives the minimum text sizes based on the
pipe diameter. This information is from the ASME (ANSI) A13.1 standards.
The color used for the text is based on the color of the label.
Yellow labels should have black text. All other label colors (green,
blue and red) should have white text.