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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 the
N25 ESFR has passed rough use and abuse testing
required for approval without the need for plastic
protectors.
Application and Installation
The Model N25 is an ESFR sprinkler intended for
installation in accordance with NFPA 13 and as a QR
Storage Sprinkler for use in accordance with FM Global
Loss Prevention Data Sheets. See Table B for further
design criteria information.
Listings and Approvals
1. FM Approved as a quick response storage sprinkler.
2. CNBOP-PIB Technical Approval.
*Note: Victaulic® and IGS™ are trademarks of Victaulic Company.
Reliable Automatic Sprinkler Co., Inc., 103 Fairview Park Drive, Elmsford, New York 10523
Model N25 (SIN RA0912)
K25.2 (360 metric)
Early Suppression
Fast Response Sprinkler
Model N25 ESFR Sprinkler
Optional Guards and Water Shields
Sprinkler
Guard or Water Shield
Model S-5 Water Shield
N25 ESFR
Pendent
Model 25 Guard
Notes:
1. Guards and shields are approved for threaded
sprinklers only.
2. Water shield is listed for use only when the sprinkler
is installed within racks (IRAS) or under open grating (or
similar) areas as required by NFPA or FM standards.
3. Guard is listed for use only when the sprinkler is
installed within racks (IRAS).
Bulletin 909 February 2020
Listings and
Approvals
FM
FM
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Related Manuals for Reliable N25
Summary of Contents for Reliable N25
- Page 1 Listings and Approvals 1. FM Approved as a quick response storage sprinkler. 2. CNBOP-PIB Technical Approval. *Note: Victaulic® and IGS™ are trademarks of Victaulic Company. Reliable Automatic Sprinkler Co., Inc., 103 Fairview Park Drive, Elmsford, New York 10523...
- Page 2 Steel Fig. 2 - Model W5 Wrench (for threaded sprinklers only) Maintenance The Model N25 ESFR Sprinkler should be inspected and the sprinkler system maintained in accordance with NFPA 25. Do not clean sprinkler with soap and water, ammonia or any other cleaning fluid. Remove any sprinkler that has been painted (other than factory applied) or damaged in any way.
- Page 3 Fig. 3 Shown with optional Model 25 Guard (ordered separately; available for threaded sprinklers only) Fig. 4 Model N25 Technical Data Table A ITEM DESCRIPTION Sprinkler Identification Number (SIN) RA0912 K Factor us (Metric) 25.2 (360) End Connection 1” NPT or ISO 7-1R1 threads, IGS™ Style V9 Sprinkler Coupling...
- Page 4 The equipment presented in this bulletin is to be installed in accordance with the latest published Standards of the National Fire Protection Association, FM Global, or other similar organizations and also with the provisions of governmental codes or ordinances whenever applicable. Products manufactured and distributed by Reliable have been protecting life and property for more than 100 years. Manufactured by Reliable Automatic Sprinkler Co., Inc.
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