What type of sprinkler heads can be used in pre-action systems?

In a pre-action sprinkler system, the most commonly used type of sprinkler head is the horizontal sidewall sprinkler head. This design is particularly beneficial because it is compatible with the layout of various environments where pre-action systems are installed, often in areas that require lower profile installations or specific aesthetic considerations.

Horizontal sidewall sprinkler heads are mounted on the wall and provide effective coverage for areas without taking up ceiling space, which aligns well with the intended use of pre-action systems. These systems are typically deployed in spaces where the risk of water damage must be minimized until absolutely necessary, as they are designed to activate only when both heat is detected and the detection system has identified a fire threat.

While other types of sprinkler heads like vertical sidewall heads, concealed heads, or open heads serve specific functions in their respective applications, they may not be as effectively suited for pre-action systems in various environments. The design and operational characteristics of horizontal sidewall heads allow them to meet the unique demands of pre-action systems while maintaining the integrity of the environment they are installed in.