Reliable G5-56 Dry User manual

Reliable Automatic Sprinkler Co., Inc., 103 Fairview Park Drive, Elmsford, New York 10523
Bulletin 051
Bulletin 051
Model G5-56 Dry (SIN RA5114)
K5.6 (80 metric)
Concealed Dry Pendent
Sprinkler
UL Quick Response
FM Standard Response
½” (13mm) Cover plate Adjustment
Features
1. Flat cover plate with threaded attachment.
2. Solid or perforated cover plate available in chrome
and white as Standard Finishes.
Also available in a wide variety of Special
Application Finishes.
3. Available in Ordinary or Intermediate temperature
rating.
4. Sprinkler available in lengths from 4¼inches
(108mm) to 48 inches (1219mm) in ¼-inch
(6.35mm) increments (see Fig. 1).
Approvals & Listings
1. Listed by Underwriters Laboratories and Certified for
Canada (cULus) as a Quick-response sprinkler for Light
and Ordinary Hazard occupancies. UL Guide Number
VNIV, Sprinklers, Automatic and Open.
2. FM Approved as a Standard-response sprinkler.
Patents
The Model G5-56 Dry is covered by the following patents:
U.S. 5,775,431
U.S. 5,967,240
Application
The Model G5-56 Dry is a cULus Listed Quick Response
Concealed Dry Pendent sprinkler intended for use in accor-
dance with NFPA 13. The Model G5-56 Dry sprinkler is cULus
Listed for use in Light and Ordinary Hazard occupancies.
The Model G5-56 Dry is FM Approved as a Standard Re-
sponse Concealed Dry Pendent sprinkler intended for use in
accordance with FM Loss Prevention Data Sheet 2.0.
Product Description
The Reliable Model G5-56 Dry sprinkler is a Dry Pendent
sprinkler, where the sealing washer is located at the inlet end
of the sprinkler assembly. The position of the sealing washer
is controlled by a fusible element at the opposite end of the
sprinkler assembly. The sprinkler is installed with the fusible
element at the ceiling of a protected space that may be sub-
ject to freezing temperatures and the inlet orifice located in a
heated area above the ceiling. Operation of the fusible ele-
ment allows the sealing washer to move out of the inlet orifice
admitting water from the supply piping. The sprinkler uses a
fast-response fusible element with an Ordinary, 165°F (74°C),
or Intermediate, 212°F (100°C), temperature classification.
The Model G5-56 Dry sprinkler has a dropdown deflector
design that allows the sprinkler to be recessed into the ceiling
and concealed by a flat cover plate. The cover plate assembly
threads into the sprinkler’s cup and provides ½-inch (13mm)
of cover adjustment. The cover plate assembly consists of a
flat cover plate that is attached to the skirt using either 135°F
(57°C) or 165°F (74°C) temperature rated solder. The 135°F
(57°C) cover plates are for use with Ordinary temperature clas-
sification sprinklers and the 165° (74°C) cover plates are for
use with Intermediate temperature classification sprinklers.
The Model G5-56 Dry sprinkler is available in lengths rang-
ing from 4¼ inches (108mm) to 48 inches (1219mm) in ¼-inch
(6.35mm) increments (see Fig. 1). The length of the sprinkler
must be selected to provide the Exposed Minimum Barrel
Length in a Heated Area required by Fig. 2.
The Model G5-56 Dry sprinkler is available with 1-inch NPT
or ISO 7-1 R1 threaded inlet fittings. The standard inlet fitting in-
cludes a long inlet designed to minimize the potential for water,
scale, and sediment to accumulate on the sprinkler inlet in wet-
and dry-pipe sprinkler systems. For wet-pipe sprinkler system
applications where the standard inlet interferes with installation
into existing plastic pipe fittings, an inlet fitting is available with
a short (“PL”) inlet. See Fig. 3 for further information.
Model G5-56 Dry Sprinkler

Note: The “A” dimension is based on a nominally gauged pipe thread “make-up” of 0.600” (15mm) per ANSI B2.1 [7½
threads approximately].
Figure. 1
2.
Technical Data:
Nominal Orifice Size: ½-inch (15mm)
Thread Size: 1-inch NPT per ANSI B2.1 or ISO 7-1 R1
Nominal K Factor: 5.6 (80 metric)
Maximum Working Pressure: 175 psi (12 bar) – 100%
factory hydrostatically tested to 500 psi (34.5 bar)
Sprinkler Installation Wrench: Model FC wrench
Sprinkler Identification Number (SIN): RA5114
Materials: See Fig. 4
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)
“A” Dim. 4¼” to 48” (108mm to 1219mm) in ¼” (6.35mm) increments

Installation Instructions
Model G5-56 Dry sprinklers must only be installed in stan-
dard (ANSI B 16.3 class 150 and ANSI B 16.4 class 125)
pipe tees in the horizontal position, even at branch line ends.
Model G5-56 Dry sprinklers shall not be installed into elbows
or pipe couplings located on drop nipples to the sprinklers. In
all installations, including into CPVC piping, the dry sprinkler
shall be installed with protrusion into the fitting in accordance
with the installation diagrams in this Bulletin.
Installation of the Model G5-56 Dry sprinkler is not recom-
mended in copper pipe systems, as this may reduce the
life expectancy of the sprinkler. Do not install Model G5-56
Dry sprinklers with the standard (long) inlet fitting into CPVC
adapter fittings or tees that have an internal obstruction (see
Fig. 3); this will damage the sprinkler, the fitting, or both. A
short inlet (“PL”) version of the Model G5-56 Dry sprinkler is
available for use in existing installations with CPVC adapter
fittings or tees having an internal obstruction; Model G5-56
sprinklers with the short inlet fitting shall not be used on dry-
pipe sprinkler systems. The Model G5-56 Dry sprinkler and
the cover plate assembly are not intended for installation in
corrosive environments, including, but not limited to, those
with salt aerosols or chlorine.
Model G5-56 Dry sprinklers must be installed with the Ex-
posed Minimum Barrel Length required by Fig. 2 located in
a Heated Area. Do NOT install the sprinkler in ceilings which
have positive pressure in the space above.
The following steps must be followed for
installation:
1. Cut a 25
/
8-inch (67mm) diameter hole in the ceiling di-
rectly in-line with the outlet of the tee.
2. Apply pipe joint compound or Polytetrafluoroethylene
(PTFE) tape to the threads of the sprinkler’s inlet fitting.
3. A protective cap is provided to protect the drop-down
sprinkler deflector from damage which could occur dur-
ing construction before the cover plate is installed. The
cap is factory installed inside the sprinkler cup. Remove
the cap to install sprinkler, Step 4, then reinstall cap until
the cover plate is installed.
4. Install the sprinkler in the tee using the Model FC wrench.
The Model FC wrench has a socket drive which is in-
serted into the sprinkler’s cup and around the body of
the sprinkler prior to installation of the sprinkler. Do NOT
wrench any of the part of the sprinkler/cup assem-
bly. The sprinkler is then tightened into the pipe fitting
to achieve a leak free connection. The recommended
minimum to maximum installation torque is 22-30 lb-ft
(30 – 40 N-m). When inserting or removing the wrench
from the sprinkler/cup assembly, care should be taken to
prevent damage to the sprinkler. Reinstall the protective
cap following installation of the sprinkler, until the cover
plate is installed.
a. Alternatively, where access to the outer tube of the
sprinkler is available, the Model G5-56 Dry sprinkler
may be installed using a pipe wrench. The protec-
tive cap should not be removed to install the sprin-
kler with a pipe wrench. The pipe wrench shall only
be permitted to interface with the steel outer tube
portion of the sprinkler (Item #8 in Fig. 4). Do NOT
wrench any other portion of the sprinkler/cup as-
sembly. A pipe wrench can install the sprinkler into
the fitting with a large amount of torque; consider-
ation should be given to the need for future removal
of the sprinklers because the installation torque will
have to be matched or exceeded to remove the
sprinkler. The recommended minimum to maximum
installation torque is 22-30 lb-ft (30 – 40 N-m).
5. To install the cover plate, remove the protective cap and
install the cover plate by hand turning the cover in the
clockwise direction until it is tight against the ceiling.
Maintenance
The Model G5-56 Dry should be inspected and the sprinkler
system maintained in accordance with NFPA 25. Do not clean
sprinklers with soap and water, ammonia or any other cleaning
fluids. Replace 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 operated sprinklers. Prior to instal-
lation, sprinkler should be maintained in the original cartons and
packaging to minimize the potential for damage to sprinklers
that would cause improper operation or non-operation.
Engineering Specification
Model G5-56 Dry Pendent Concealed Sprinkler
Dry pendent sprinklers shall be dry pendent concealed
sprinklers with a flat cover plate. Sprinklers shall be cULus
Listed as Quick Response for Light and Ordinary Hazard ap-
plications as well as FM Approved as Standard Response.
Sprinklers shall be available in lengths from 4¼ inches
(108mm) to 48 inches (1219mm) in ¼-inch (6.35mm) incre-
ments based on face of fitting to finished ceiling distance.
Sprinkler length shall be selected to provide the Exposed
Minimum Barrel Length based on the minimum design tem-
perature in the protected area and the minimum temperature
Model FC
Sprinkler Wrench
3.
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 oth-
erwise.
(2) For the perforated style coverplate, consult factory for availability on
these and other custom finishes.

4.
Figure 2

5.
Figure 3
in the conditioned space where the barrel is located in accor-
dance with the Manufacturer’s written installation instructions.
Sprinklers shall have [1-inch NPT][ISO 7-1 R1] threaded inlet
fittings with [standard length inlets designed for use with wet-
or dry-pipe sprinkler systems][short length inlets designed for
use with wet-pipe sprinkler systems having pipe fittings with
internal obstructions that prevent the insertion of standard
length inlets]. Sprinklers shall have a PTFE coated beryllium
nickel Belleville spring washer inlet seal and brass alloy cap
that prevent water entry from the sprinkler system piping into
the sprinkler prior to actuation. Sprinklers shall have a fast-
response fusible link that controls the movement of the inlet
seal and cap through a mechanism consisting of link arms,
a seat adapter, an orifice adapter, an inner tube, and a yoke.
Sprinklers shall use a drop down deflector supported by ta-
pered pins. Sprinklers shall have a galvanized steel cup for
threaded attachment of the flat cover plate assembly. Cover
plate attachment shall provide up to ½-inch (13mm) of ad-
justment. Sprinklers shall be [Ordinary temperature classifica-
tion, 165°F (74°C), with 135°F temperature rated cover plates]
[Intermediate temperature classification, 212°F, with 165°F
temperature rated cover plates]. Cover plates shall be [solid]
[perforated] with factory applied [White][Chrome][Special
Application – Specify] finish. Dry pendent concealed sprin-
klers shall be Reliable Model G5-56 Dry (SIN RA5114).

Reliable Automatic Sprinkler Co., Inc.
[phone] Sales Offices
[phone] Sales Fax
[phone] Corporate Offices
www.reliablesprinkler.com Internet Address
Manufactured by
Recycled
Paper
Revision lines indicate updated or new data.
EG. Printed in U.S.A. 10/15 P/N 9999970480
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.
Figure 4
Ordering Information
Specify:
1. Sprinkler: Model G5-56 Dry
2. Threads: [1-inch NPT - standard][ISO 7/1 R1 - optional]
3. Inlet Length: [Standard][Short (“PL”)– for existing wet-
pipe installations only]
4. Cover Plate Finish: [White][Chrome][Special Application
– Specify]
5. Sprinkler/Cover Plate Temperature Rating: [Ordinary –
165°F sprinkler with 135°F cover plate][Intermediate –
212°F sprinkler with 165°F cover plate]
6. Nominal Sprinkler Length (face of fitting to face of ceiling
- “A” Dimension from Fig. 1): [Specify length – Lengths
available from 4¼ inches to 48 inches (108mm to
1219mm) in ¼-inch (6.35mm) increments]