1/2" CONCEALED SPRINKLER PENDENT, (Date Code: 2023), Quick Reaction, UL Listed

Manufacturer: Paratech, Co., Ltd. Model:  PI821 Pipe Size:  1/2" Date Code:  2023 This Paratech Quick Response Pendent sprinkler head features a glass bulb activating at 155 Degrees Fahrenheit with a K-Factor of 5.6 and a 1/2" NPT. The PI821 is used in commercial/residential properties and is UL listed for use when installed in accordance with NFPA13 rules for wet pipe sprinkler systems.   This Sprinkler contains a glass bulb that consists of a special liquid. Unlike conventional fuses, the glass bulb design simplifies the sprinkler assembly and size, ensuring stable operation at the designated temperature.