Reliable G5-56 Dry, Manual

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Reliable Automatic Sprinkler Co., Inc., 103 Fairview Park Drive, Elmsford, New York 10523
Bulle
tin 051 F
ebruary 2021
Bulletin 051 February 2021
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. Cover plate available in chrome and white as Stan-
dard Finishes.
Also available in a wide variety of Special Ap-
plication Finishes.
3. Cover plates with gaskets are available to limit
dust and air movement through the ceiling.
4. Available in Ordinary or Intermediate temperature rat-
ing.
5. Sprinkler available in lengths from 4
¼
inches (108mm)
to 48 inches (1219mm) in
¼-
inch (6.35mm) incre-
ments (see Fig. 1).
Approvals & Listings
1. Listed by Underwriters Laboratories and Certified for Can -
ada (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 Con-
cealed Dry Pendent sprinkler intended for use in accordance
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 ac-
cordance with FM Loss Prevention Data Sheet 2.0.
Product Description
The Reliable Model G5-56 Dry sprinkler is a Dry Pendent sprin-
kler, where the sealing washer is located at the inlet end of the sprin-
kler 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 pro-
tected space that may be subject to freezing temperatures and the
inlet orifice located in a heated area above the ceiling. Operation of
the fusible element 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 con-
cealed by a flat cover plate. The cover plate assembly threads into
the sprinkler’s cup and provides ½-inch (13mm) of cover adjust-
ment. 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 classification sprinklers and the 165°
(74°C) cover plates are for use with Intermediate temperature clas-
sification sprinklers.
The Model G5-56 Dry sprinkler is available in lengths ranging 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 includes
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