Description
The Reliable Model P22 is an Early Suppression Fast Response (ESFR) fire sprinkler with a nominal K-factor of 22.4 (320 metric). The sprinkler uses a levered fusible alloy solder link in either a 165°F (74°C) or a 212°F (100°C) temperature rating. These sprinklers are designed to respond quickly to growing fires and will deliver a heavy water discharge to suppress a fire. Suppression is considered a higher level of control characterized by a sharp reduction in heat release rate along with preventing regrowth of the fire.
For systems designed in accordance with NFPA 13 standards, the Model P22 is considered an ESFR fire sprinkler. FM Approvals classifies the Model P22 as a quick-response storage and non-storage sprinkler when used in accordance with FM Global Property Loss Prevention Data Sheets.
The Model P22 fire sprinkler may also be used as an in-rack sprinkler where permitted by NPFA or FM. A sprinkler guard and water shield is available when the Model P22 is used in this application.
Model P22 ESFR sprinklers are designed to be shorter and more compact than other ESFR sprinklers, allowing greater flexibility with regard to distance from ceilings and obstructions. Model P22 ESFR sprinklers are less susceptible to damage due to smaller deflector and frame design and have passed rough use and abuse listing tests without plastic protectors.