What color are the frame arms on extra high temperature sprinkler heads?

The frame arms on extra high temperature sprinkler heads are red. This color coding is established in accordance with the standards set by organizations such as the National Fire Protection Association (NFPA) and Underwriters Laboratories (UL). The red color indicates that the sprinkler is designed to operate at higher temperatures compared to standard sprinkler heads, which typically have different color indicators based on their temperature ratings.

This differentiation is crucial for fire safety, as it helps installers and firefighters quickly identify the type of sprinkler system being utilized and its appropriate application in high-temperature environments. Understanding these color codes is essential for proper installation and maintenance in various settings, ensuring that fire suppression systems function optimally under the conditions they are designed for.