Pipe Markers Colors

Custom Pipe Markers

The color of the pipe marker is used to identify the hazard level of the pipe contents

Black on Yellow White on Green White on Blue White on Red

Designation of Colors

Fluid Service Background Colors Letter Color Color & Letter Sample
Fire quenching fluids
Safety Red
White
Letters
Toxic and corrosive fluids
Safety Orange
Black
Letters
Flammable fluids
Safety Yellow
Black
Letters
Combustible fluids
Safety Brown
White
Letters
Potable, cooling, boiler feed
and other water
Safety Green
White
Letters
Compressed air
Safety Blue
White
Letters
To be defined by the user
Safety Purple
White
Letters
To be defined by the user
Safety White
Black
Letters
To be defined by the user
Safety Gray
White
Letters
To be defined by the user
Safety Black
White
Letters