ANSI/ASME Pipe Marking Color Code
Do you know the contents of this pipe? Or that one?
Having facility pipes clearly marked with compliant labels allows plant staff, maintenance crews, and emergency workers to quickly identify pipe contents and flow direction.
ANSI, or the American National Standards Institute, uses this color code to identify pipes by the general kinds of materials they contain.
Yellow is flammable, brown is combustible, orange is toxic and corrosive. Red is fire quenching, green is other water, blue is compressed air- and other colors, such as black, grey and purple should be determined by the facility's needs.
For a copy of the ANSI/ASME Pipe Marking color code and for information about pipe marker size or placement-follow the link, fill out the form and receive your free Pipe Marking Quick Reference Guide.
Related Resources

What is Pipe Marking
Pipes, lines, tubing, conduits while the terminology varies, the problem is always the same: Workers, site ...
Watch Now
Pipe Marking Made Easy
Makeshift pipe marking is risky and only a short-term solution. At DuraLabel, we understand that compliant ...
Watch Now
IIAR Pipe Marking Labels
Is this label compliant? How do you know? Can you point out what needs to change? The IIAR, or International ...
Watch Now