1/2" PENDENT SPRINKLER, Quick Reaction, Brass (Date Code: 2025), UL/FM Listed

Manufacturer: Paratech, Co., Ltd.

Brand: FESCO

Model:  PI321

Pipe Size:  1/2"

Installation Direction:  Pendent

Finish:  Brass

Type:  Glass Bulb

Reaction Speed:  Quick

Operation Temperature:  155°F / 200°F /286°F 

K Factor:  5.6

Date Code:  2025

This Paratech Quick Response Pendent sprinkler head features a glass bulb activating at 155/200/286 Degrees Fahrenheit with a K-Factor of 5.6 and a 1/2" NPT. The PI321 is used in commercial/residential properties and is cULus 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.