Model N25 ESFR Sprinkler
Model N25 Sprinkler w/
Victaulic® IGS™ Style V9
Sprinkler Coupling
Model
Nominal K-factor
gpm/psi
1/2
(L/min/bar
1/2
)
Approvals
Sprinkler Identificaiton
Number (SIN)
N25
25.2 (360)
FM, CNBOP-PIB
RA0912
Model N25 ESFR Pendent Sprinkler
Table A
Features
•
FM Approved as a quick-response storage sprinkler
•
Fusible link operating element
Product Description
The Reliable Model N25 Early Suppression Fast Response
(ESFR) Sprinkler is intended for use against severe fire
challenges. The sprinkler is designed to respond quickly
to a growing fire and deliver a heavy discharge of water to
suppress the fire. The Model N25 is FM Approved as a quick
response storage sprinkler.
The Model N25 ESFR Sprinkler utilizes a levered fusible
alloy solder link in either a 165°F (74°C) or 212°F (100°C)
temperature rating. The sprinkler has a nominal K Factor of
25.2 (metric 360), and is available with 1” NPT or ISO 7-1R1
threads, or with the Victaulic® IGS™ Style V9 Sprinkler
Coupling*.
The small deflector and frame provide a broad, symmetrical,
hemispherical pattern capable of suppressing fires between
sprinklers in high-piled storage areas. At the same time, a high
momentum central core discharge penetrates and suppresses
fires occurring directly beneath the sprinkler in lower height
storage areas.
The N25 ESFR sprinkler is less susceptible to damage due to
the smaller deflector and frame design, and has passed rough
use and abuse testing required for approval without the need
for plastic protectors.
*Note:
Victaulic® and IGS™ are trademarks of Victaulic
Company.
www.reliablesprinkler.com
Model N25 ESFR
Pendent Sprinkler
175 psi (12 bar) rated
Bulletin 909 August 2020
