Reliable G5-56 Handbuch

The Reliable Automatic Sprinkler Co., Inc., 103 Fairview Park Drive, Elmsford, New York 10523

Bulletin 034 Rev. B

Model G5-56, Model G5-42,

Model G5-28

Quick Response Concealed

Automatic Sprinkler

UL Quick Response

FM Standard Response

Concealed Sprinkler With a

3/4” (19mm) Adjustment

Features

1. Cover plate attachment (Plain or Perforated) with

¾” (19mm) assembly adjustment.

2. Smooth aesthetic ceiling profile.

3. Factory installed protective cap.

4. Available in Chrome and White as Standard Finish-

es. Special Application Finishes are also available.

5. Ordinary and Intermediate temperature rating.

For additional Sprinklers refer to Bulletin 154 for

Technical Speciﬁcation and Approvals

Approvals & Listings

1. Underwriters Laboratories Inc. and cULus -

Quick Response

• G5-56 - Light Hazard and Ordinary Hazard

Occupancies

• G5-42 - Light Hazard Occupancies

• G5-28 - Light Hazard Occupancies

2. Factory Mutual Research Corp. (FM) -

Standard Response (See Page 3)

• See the most recent FM Global Property

Loss Prevention Data Sheets for installation

and use guidelines.

3. Loss Prevention Council (LPCB, UK) -

Standard Response

• G5-56 - Light Hazard and Ordinary Hazard

Occupancies

4. VdS Schadenverhütung GmbH -

Standard Response

5. EC-Certificate of Conformity 0832-CPD-2062

U.S. Patent number 6,554,077.

Application

The Reliable Model G5-56, G5-42 and G5-28 are the most

versatile quick response concealed sprinklers available. It

provides the best form of fire protection while offering an at-

tractive appearance and 3/4” (19mm) of cover adjustment for

ease of installation. The small diameter cover plate assem-

bly is easily attached and blends into the ceiling, concealing

the most dependable fire protection available, an automatic

sprinkler system.

The Model G5-56, G5-42 and G5-28 are designed for use

where aesthetic appearance is important. Offices, hospitals,

motels and restaurants are but a few of the applications where

it can be used.

The Model G5-56, G5-42 and G5-28 are UL Listed Quick

Response Concealed sprinklers intended for use in accor-

dance with NFPA 13. FM Approves the G5-56 and the G5-28

sprinkler as a standard response concealed sprinkler intended

for use in accordance with FM Loss Prevention Data Sheet 2.0.

Product Description

The Reliable Model G5-56, G5-42 and G5-28 uses a proven

quick response fusible element in a standard style sprinkler

frame with a drop-down deflector. This assembly is recessed

into the ceiling and concealed by a flat cover plate assem-

bly. The threaded engagement provides ¾” (19mm) of cover

adjustment. The flat cover plate is attached to the skirt using

either 135°F (57°C) or 165°F (74°C) ordinary temperature clas-

sification solder.

When the ceiling temperature rises, the solder holding the

flat cover plate melts, the flat cover plate released thus expos-

ing the sprinkler inside to the rising ambient temperature.

The subsequent fusing of the element opens the waterway

and causes the deflector to distribute the water. Any secure

engagement between the cover plate and cup will assure that

the drop-down deflector is properly located below the ceiling.

Plain Cover Plate

Perforated Cover Plate

Installation

Do not install the G5-56, G5-42 and G5-28 in ceilings which

have positive pressure in the space above.

• Cut a 25

8” inch (67mm) diameter hole is cut in the ceiling, the

sprinkler is easily installed with the Model FC Wrench. The

wrench has a socket drive which is inserted into the body of

the sprinkler. When installing a sprinkler the wrench is first

positioned into the sprinkler/cup assembly until the wrench

socket engages the body of the sprinkler. The sprinkler is

then tightened into the pipe fitting. When inserting or remov-

ing the wrench from the sprinkler/cup assembly, care should

be taken to prevent damage to the sprinkler. DO NOT

WRENCH ON ANY OTHER PART OF THE SPRINKLER/

CUP ASSEMBLY. Install the cover plate by hand turning the

cover in the clockwise direction until it is tight against the ceil-

ing.

A protective cap is provided to protect the drop-down sprinkler

deflector from damage which could occur during construction

before the cover plate is installed. The cap is factory installed

inside the sprinkler cup. Remove cap to install sprinkler, then re-

install cap until the cover plate is installed.

Maintenance

The Model G5-56, G5-42 and G5-28 should be inspected

quarterly and the sprinkler system maintained in accordance

with NFPA 25. Do not clean sprinklers with soap and water, am-

monia or any other cleaning fluids. Remove any sprinkler that

has been painted (other than factory applied) or damaged in

any way. Concealed sprinklers cover plates can not be painted

in the field, after installation or have any other coating applied

other than the factory finish. A stock of spare sprinklers should

be maintained to allow quick replacement of damaged or oper-

ated sprinklers. Prior to installation, sprinklers should be main-

tained in the original cartons and packaging to minimize the

potential for damage to sprinklers that would cause improper

operation or non-operation.

UL Listing Category

Sprinklers, Automatic and

Open

Quick Response Sprinkler

UL Guide Number

VNIV

Maximum Working Pressure

175 psi (12 bar)

100% Factory tested Hydrostatically to 500 psi (34.5 bar)

Temperature Rating

Classiﬁcation Sprinkler Cover

Plate

Max. Ambient

Temp.

Ordinary 165°F/74°C 135°F/57°C 100°F/38°C

Intermediate 212°F/100°C 165°F/74°C 150°F/66°C

Model FC Sprinkler Wrench

Ordering Information

1. Sprinkler Model

2. Nominal Orifice

3. Flat Cover Plate

Plain or Perforated

4. Flat Cover Plate

Assembly Finish

5. Inlet Type

Cover Plate Finishes(1)

Standard Finishes

Chrome

White Paint

Special Application

Finishes(2)

Bright Brass

Finished Bronze

Black Plating

Black Paint

Off White

Satin Chrome

(1) Other finishes and colors are

available on special order.

Consult factory for details.

Coverplate custom paint is

semi-gloss, unless specified

otherwise.

(2) For the perforated style cover-

plate, consult factory for avail-

ability on these and other cus-

tom finishes.

Technical Data

Sprinkler

Model Sprinkler Inlet Total

Adjustment

Nominal

Oriﬁce

Nominal

K Factor Thread Approvals Sprinkler

Identiﬁcation (SIN)

US Metric

G5-56 Non Adjustable ¾” (19mm) ½” (15mm) 5.6 80 ½” NPT (R½) 1,2,3,4,5 RA3415

G5-42 Non Adjustable ¾” (19mm) 7

16” (10mm) 4.2 60 ½” NPT (R½) 1 RA3413

G5-28 Non Adjustable ¾” (19mm) 3

8” (10mm) 2.8 40 ½” NPT (R½) 1,2 RA3411

For VdS Approval, temperature rating sprinkler 165°F/74°c and cover plate 135°F/57°C only!

Notice

FOR USE AS A REPLACEMENT OF MODEL G4A SPRINKLERS

NOTE:

1. Testing has shown that use of a “nipple extension” will not affect the listing of the sprinkler.

2. For RETROFIT installations, per NFPA 13 (2010) section 8.15.19.4, “which allows the use of nipples as the same pipe

thread size as the existing outlet when revamping existing systems”.

3. Do not exceed 8-18 ft-lbs of torque during installation.

The Reliable Automatic Sprinkler Co., Inc.

(800) 431-1588 Sales Offices

(800) 848-6051 Sales Fax

(914) 829-2042 Corporate Offices

www.reliablesprinkler.com Internet Address

Manufactured by

Recycled

Paper

Revision lines indicate updated or new data.

EG. Printed in U.S.A. 11/12 P/N 9999970421

The equipment presented in this bulletin is to be installed in accordance with the latest published Standards of the National Fire Protection Association, Factory

Mutual Research Corporation, 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 over 90 years, and are installed and serviced by the most highly

qualified and reputable sprinkler contractors located throughout the United States, Canada and foreign countries.

• Automatic sprinklers

• Flush automatic sprinklers

• Recessed automatic sprinklers

• Concealed automatic sprinklers

• Adjustable automatic sprinklers

• Dry automatic sprinklers

• Intermediate level sprinklers

• Open sprinklers

• Spray nozzles

• Alarm valves

• Retarding chambers

• Dry pipe valves

• Accelerators for dry pipe valves

• Mechanical sprinkler alarms

• Electrical sprinkler alarm switches

• Water flow detectors

• Deluge valves

• Detector check valves

• Check valves

• Electrical system

• Sprinkler emergency cabinets

• Sprinkler wrenches

• Sprinkler escutcheons and guards

• Inspectors test connections

• Sight drains

• Ball drips and drum drips

• Control valve seals

• Air maintenance devices

• Air compressors

• Pressure gauges

• Identification signs

• Fire department connection

Reliable offers a wide selection of sprinkler components. Following are some of the many

precision-made Reliable products that guard life and property from fire around the clock.

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