The bulb color for a temperature range of 500'F to 650'F is?

In the context of sprinkler systems, the bulb color used in sprinkler heads is crucial as it indicates the activation temperature range of the sprinkler. For a temperature range of 500°F to 650°F, the proper bulb color is black.

This specific color coding is designed to help installers and maintenance personnel quickly identify the operating temperatures of sprinkler heads. Bulb colors are standardized to ensure consistency across the industry, which enhances safety and effectiveness in fire suppression.

In this case, the black bulb signifies a high-temperature rating, which is essential for environments where higher temperatures are expected, such as industrial settings or areas with high ceilings. Understanding these color codes is important for ensuring that the appropriate sprinkler heads are installed in accordance with the fire protection requirements of a given area.