What is the activation temperature of a blue sprinkler bulb?

The activation temperature of a blue sprinkler bulb is 141 °C. Sprinkler bulbs are color-coded to indicate their activation temperatures, and blue bulbs are specifically designed for use in high-temperature environments. This high activation temperature is necessary to ensure that the sprinkler system functions effectively in areas where temperatures can exceed those typically found in standard settings. The design and color coding of these bulbs help installers and maintenance personnel quickly identify the appropriate sprinklers for specific applications, ensuring proper installation and functionality of the sprinkler system in preventing or mitigating fire incidents.