Industrial Pipe Marking Guide - Creative Safety Supply April 2014

Industrial Pipe Marking Guide Color, Size & Placement Reference Chart source: ANSI/ASME a13.1 Pipe Marking labels must effectively communicate the contents of the pipes, and give additional detail if special hazards (such as extreme temperatures or pressures) exist. Yellow Flammable Fluids & Gasses Red Fire-Quenching Fluids Orange Toxic or Corrosive Fluids & Gasses Green All Water (Potable, Boiler, etc.) Blue All Air (Compressed, Lab, etc.) Brown Combustible Fluids & Gasses Purple Definable by user Black Definable by user White Definable by user Gray Definable by user Direction of Flow Although not required by ANSI/ASME regulations, it is STRONGLY recommended to note the direction of flow on the pipe, either on the pipe marking label itself, or by using ‘arrow banding’ tape. Pipe Marker Placement There are 4 key areas where labels should be placed: Pipe Label Sizing Requirements fig A Labels should be applied at such an angle so that the are easily visible from employees’ direct line of sight. fig A Pipe Diameter Minimum Label Length Minimum Letter Height 0.75” to 1.25” 8” 0.5” 1.25” to 2.5” 8” 0.75” 2.5” to 8” 12” 1.25” 8” to 10” 1. At 25’ to 50’ intervals on straight runs 2. At all changes in direction 3. On both sides of entry points through floors and walls 4. Adjacent to all flanges and valves 24” 2.5” 10”+ 32” 3.5” Additional questions? Give us a call at [phone], or email us at [email protected]. Questions? Call us at [phone] or visit us on the web at www.creativesafetysupply.com