Reliable N25 ESFR Manuel utilisateur

Model N25 ESFR Sprinkler

Model N25 Sprinkler w/

Victaulic® IGS™ Style V9

Sprinkler Coupling

Model Nominal K-factor

gpm/psi1/2 (L/min/bar1/2)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

Model N25 ESFR Sprinkler SIN RA0912

Technical Specifications

Style: Pendent

Connection: 1” NPT or ISO7 R-1 threads, IGS™

Style V9 Sprinkler Coupling

Nominal K-Factor: 25.2 (360)

Max. Working Pressure: 175 psi (12 bar)

Material Specifications

Thermal Sensor: Beryllium Nickel Solder Link

Sprinkler Frame: Brass Casting

Button: Copper Alloy

Sealing Assembly: Nickel with PTFE

Load Screw: Stainless Steel

Deflector: Bronze

Levers: Stainless Steel

Ejection Spring: Stainless Steel

Sprinkler Finishes

Standard (Brass Only)

Sensitivity

Quick-Response

Temperature Ratings

Ordinary: 165°F (74°C)

Intermediate: 212°F (100°C)

Guards and Shields (for threaded sprinklers only)

K25 Guard (Intermediate level ONLY)

S-5 Water Shield (Intermediate level ONLY)

Sprinkler Wrench

Model W5

Listings and Approvals

FM Approved

CNBOP-PIB

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

August 2020

Page 2 of 5

www.reliablesprinkler.com

Model N25 ESFR Commodity Selection and Design Criteria Overview Table B

Storage Type NFPA FM GLOBAL

Sprinkler Type ESFR Storage

Response Type ESFR QR

System Type Wet Wet

Temperature Rating °F (°C) 165, 212 (74, 100) 165, 212 (74, 100)

Roof Construction See NFPA 13 See FM Global 2-0

Ceiling Slope See NFPA 13 See FM Global 2-0

Maximum Coverage Area See NFPA 13 See FM Global 2-0

Minimum Coverage Area See NFPA 13 See FM Global 2-0

Maximum Spacing See NFPA 13 See FM Global 2-0

Minimum Spacing See NFPA 13 See FM Global 2-0

Minimum Clearance to Commodity See NFPA 13 See FM Global 2-0

Sprinkler Distance to Ceiling See NFPA 13 See FM Global 2-0

Open Frame, Single, Double, Multiple

Row, or Portable Rack Storage of Class

I - IV Commodity and Group A Plastic

See NFPA 13 See FM 2-0 and 8-9

Solid Pile or Palletized Storage of Class

I - IV Commodity and Group A Plastic See NFPA 13 See FM 2-0 and 8-9

Idle Pallet Storage See NFPA 13 See FM 2-0, 8-9 and 8-24

Rubber Tire Storage See NFPA 13 See FM 2-0 and 8-3

Rolled Paper Storage See NFPA 13 See FM 8-21

Flammable Liquid Storage See NFPA 30 See FM 7-29

Aerosol Storage See NFPA 30B See FM 7-31

Auto Components in Portable Racks N/A N/A

Bulletin 909

August 2020

Page 3 of 5

www.reliablesprinkler.com

Installation

Model N25 sprinklers are intended for installation in accordance

with NFPA 13 and FM Loss Prevention Data Sheets 2-0 and

8-9, as well as the requirements of any Authorities Having

Jurisdiction. See Table B for information on NFPA and FM

Global design criteria for the Model N25 sprinklers.

For threaded sprinklers only, use the Model W5 sprinkler

wrench for installation (Figure 3). Any other type of wrench may

damage the sprinkler. A grooved wrench boss is provided on

the sprinkler to limit the potential for the wrench to slip during

installation.

Model N25 sprinklers should be tightened between 14 - 40

lbs-ft (19 - 54 N.m) torque. Do not tighten sprinklers over the

maximum recommended torque. Exceeding the maximum

recommended torque may cause leakage or impairment of the

sprinklers.

For grooved sprinklers, push the IGS™ Style V9 Sprinkler

Coupling onto the grooved outlet until contact with the center

leg of the gasket occurs. Align the sprinkler frame arms and

the pads of the coupling with the sprinkler piping and tighten

the coupling until the pads of the coupling meet. For additional

information, please reference Victaulic® technical bulletin I-V9.

Caution: When handling sprinklers, hold sprinklers only by the

frame arms and do not apply any force on the link assembly.

Damaged sprinklers must be replaced immediately.

Maintenance

Reliable Model N25 sprinklers should be inspected and the

sprinkler system maintained in accordance with NFPA

25, as well as the requirements of any Authorities Having

Jurisdiction.

Prior to installation, sprinklers should remain in the original

cartons and packaging until used. This will minimize the

potential for damage to sprinklers that could cause improper

operation or non-operation.

Do not clean sprinklers with soap and water, ammonia liquid or

any other cleaning fluids. Remove dust by gentle vacuuming

without touching the sprinkler.

Replace any sprinkler which has been painted (other than

factory applied). A stock of spare sprinklers should be

maintained to allow quick replacement of damaged or operated

sprinklers.

Failure to properly maintain sprinklers may result in inadvertent

operation or non-operation during a fire event.

Guarantee

For the Reliable Automatic Sprinkler Co., Inc. guarantee, terms,

and conditions, visit www.reliablesprinkler.com.

Note: 1” S/142 IGS™ grooved welded

outlets are also available from Reliable.

Ordering Information

Specify:

• Sprinkler: [N25]

• Temperature Rating: [165°F (64°C)] [212°F (100°C)]

• End Connection: [1” NPT] [ISO7 R-1]

[Victaulic® IGS™ Style V9 Sprinkler Coupling]

Victaulic® IGS™ Style V9

Sprinkler Coupling installation

bit - One bit provided in each

box of 25 sprinklers.

Model W5 Sprinkler Wrench Figure 3

Bulletin 909

August 2020

Page 5 of 5

www.reliablesprinkler.com

P/N 9999970287

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