What is the color code for ordinary temperature sprinklers?

The color code for ordinary temperature sprinklers is uncolored or black. This designation helps to easily identify the operating characteristics and temperature ratings of the sprinklers. Ordinary temperature sprinklers are typically rated for use in environments where the temperature does not exceed 155°F (68°C). The absence of color, or the use of black, signifies that these sprinklers are intended for standard applications where higher temperature ratings and special conditions are not a concern.

In contrast, different colors correspond to sprinklers that are rated for specific temperature ranges; for example, red is often associated with higher temperature ratings. Understanding this color coding is crucial for sprinkler installation and maintenance, as using the correct type of sprinkler ensures proper operation in the event of a fire.