Reliable G5-56 Dry, Manual

Page: 6 / 7

Maintenance
The Model G5-56 Dry should be inspected and the sprin-
kler 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. Con-
cealed 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 main -
tained to allow quick replacement of damaged or operated
sprinklers. Prior to installation, 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 sprin-
klers with a flat cover plate. Sprinklers shall be cULus Listed as
Quick Response for Light and Ordinary Hazard applications
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) increments 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 temperature in the protected
area and the minimum temperature in the conditioned space
where the barrel is located in accordance with the Manufac-
turer’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 obstruc
-
tions 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 ori-
fice adapter, an inner tube, and a yoke. Sprinklers shall use
a drop down deflector supported by tapered 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 adjustment. Sprinklers shall
be [Ordinary temperature classification, 165°F (74°C), with
135°F temperature rated cover plates][Intermediate tempera
-
ture 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 sprinklers shall be Reliable Model G5-
56 Dry (SIN RA5114).
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]
6.