3. LABEL REQUIREMENTS
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. The legend should be short in length
and easy to understand.
ASME A13.1 was updated in 2007 and reaffirmed
in 2013. It uses a color code chart with six standard
color combinations and four user-defined
combinations as shown below. The colors are based
on the contents of the pipe and in general, the most
hazardous feature of the contents is used to
determine the colors used.
4.
5.
6. PLACE MARKERS
• To indicate of flow by labeling with arrows at one or both ends of the label.
• To be visible from the point of normal approach.
• Near valves, flanges and changes in pipe direction.
• Both sides of ceiling, wall or floor penetrations.
• At any line entry or re-entry point.
• On straight pipe runs.
• Every 50 feet.
9. FRESH WATER
COOLING
SYSTEM
SEA WATER
COOLING
SYSTEM
•HEAVY
•DIESEL
FUEL OIL
SYSTEM
INERT GAS
SYSTEM
FRESH WATER
GENERATOR
STEAM
HEATING
SYSTEM
SEWAGE
SYSTEM
WASTE
MANAGEMENT
SYSTEM
BILGE WATER
SYSTEM
•ARRANQUE
•CONTROL
•SERVICIO
COMPRESSED
AIR SYSTEM
LUBRICATING
OIL SYSTEM
POWER
MANAGEMENT
SYSTEM
BALLAST
SYSTEM
FIRE FIGHTING
SYSTEM
STEERING
GEAR SYSTEM
GENERAL
SERVICE
SYSTEM
AIR
CONDITIONING
FRIGORIFICA