What is the size of the Early suppression/fast response sprinkler (ESFR) orifice?

The size of the orifice for Early Suppression/Fast Response (ESFR) sprinklers is typically 3/4 inch. This design allows for a rapid discharge of water to quickly control or suppress a fire, particularly in environments with high ceilings or large open spaces, such as warehouses or manufacturing facilities. These sprinklers are engineered to provide a higher flow rate and a larger discharge pattern to effectively combat fires at an early stage. Featuring a larger orifice compared to standard sprinklers, ESFR systems help to address the unique challenges posed by high-challenge environments where fast response is critical for fire control.