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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.
Model N25 ESFR Pendent Sprinkler
Model
N25
Nominal K-factor
gpm/psi
(L/min/bar
)
1/2
1/2
25.2 (360)
www.reliablesprinkler.com
Model N25 ESFR Sprinkler
Model N25 Sprinkler w/
Victaulic® IGS™ Style V9
Sprinkler Coupling
Approvals
FM, CNBOP-PIB
Bulletin 909 August 2020
Model N25 ESFR
Pendent Sprinkler
175 psi (12 bar) rated
Table A
Sprinkler Identificaiton
Number (SIN)
RA0912
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Table of Contents
Related Manuals for Reliable N25 ESFR
Summary of Contents for Reliable N25 ESFR
- Page 1 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.
- Page 2 CNBOP-PIB Sprinkler Finishes Standard (Brass Only) Model N25 Sprinkler Components and Dimensions Figure 1 Model N25 ESFR Sprinkler with Model 25 Guard (ONLY for intermediate level use on threaded sprinklers) Figure 2 Bulletin 909 Page 2 of 5 August 2020...
- Page 3 Model N25 ESFR Commodity Selection and Design Criteria Overview Table B Storage Type NFPA FM GLOBAL Sprinkler Type ESFR Storage Response Type ESFR System Type Temperature Rating °F (°C) 165, 212 (74, 100) 165, 212 (74, 100) Roof Construction See NFPA 13...
- Page 4 Note: 1” S/142 IGS™ grooved welded outlets are also available from Reliable. Maintenance Reliable Model N25 sprinklers should be inspected and the sprinkler system maintained in accordance with NFPA Victaulic® IGS™ Style V9 25, as well as the requirements of any Authorities Having Sprinkler Coupling installation Jurisdiction.
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