The American Society of Mechanical Engineers (ASME) and the American National Standards Institute (ANSI) require that pipes markers and valve tags be properly displayed to ensure safety in the workplace. This standard is uniformly covered under both ANSI and ASME standard A13.1.
Labels and pipe markers on pipes and valves promote safety by openly communicating the pipe’s contents, the potential hazards of the contents, and the directional flow of these contents. This information can be vital.
For example, pipes may have HAZMAT flowing through them. HAZMAT is a hazardous gas, solid, or liquid that can be radioactive, flammable, toxic, explosive, corrosive, or biohazardous. If a pipe contains these hazardous materials, according to ANSI standard A13.1 2007, this pipe must be marked to inform emergency response personnel of "hazardous materials conveyed in piping systems and their hazards when released into the environment."
Pipe marking also helps managers and maintenance personnel to make good decisions, act quickly, and prevent accidents because they know what is in the system. Also, directional tape identifies what direction the pipe contents are flowing at all times.
Pipe markers should be durable and easily to read. There are also universal color codes to make pipe contents especially easy to identify. Yellow pipe markers identify flammable fluids, orange pipe markers identify toxic and corrosive fluids. These pipe markers use black lettering.
Green pipe markers identify potable, cooling, boiler feed and other waters, while blue marks gaseous admixtures. Red pipe markers identify fire quenching materials, such as Water, Foam, CO2, and Halon, while brown pipe markers identify combustible fluids. Green, blue, red and brown pipe markers require white lettering. Text must also be a specific size based on the size of the pipe. The ultimate goal is for the words to be highly visible.
There are a variety of different types of pipe markers, such as self-adhesive pipe markers, snap-on pipe markers, and pipe banding tape.
Custom pipe markers are also available to meet your exact specifications, while still complying with ANSI/ASME standards.
Proper labeling of pipes and valves can save a life. By taking the necessary precautions, you can prevent accidents and save time. For more information on choosing the right pipe markers for your facility, visit http://www.seton.com/splash/pipe_markers/pmark.htm



