Reliable G5-56 Dry Manual

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
to 48 inches (1219mm) in
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
Reliable Automatic Sprinkler Co., Inc., 103 Fairview Park Drive, Elmsford, New York 10523
inches (108mm)
¼
inch (6.35mm) incre-
¼-
Model G5-56 Dry (SIN RA5114)
K5.6 (80 metric)
Concealed Dry Pendent
Sprinkler
Model G5-56 Dry Sprinkler
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.
Bulletin 051 February 2021