STAR SPRINKLER INC. ATYCO International Ltd. Company CD 1-3.2.20 • 6/97
Residential Pendent Model SG-R
Glass Bulb Sprinkler
GENERAL DESCRIPTION
ModelSG-RGalaxyResidentialSprinklers areperfectfor
themostarchitecturallysensitiveprojectsandarebuilttough
to last. The glass bulb element does not project beyond the
width of the sprinkler base, reducing the risk of damage dur-
ing installation and when in use. Galaxy sprinklers feature
an extremely small frame design which is both streamlined
andaestheticallypleasing. GALAXYRESIDENTIALSPRIN-
KLERS are specially designed for use in residential struc-
tures like homes, condominiums, apartments, dormatories,
hotels and other living areas. Galaxy's unique design re-
quires very low flow rates and pressures. This feature helps
reduce pipe sizes and water supply requirements,
The Galaxy Series Residential Model SG-R is designed
for use in areas with finished ceilings.
OPERATION
When the sprinkler is exposed to a fire's heat, the quick
response glass bulb in the sprinkler reaches its operating
temperature and the fluid inside expands forcing it to shat-
ter, activating the sprinkler. Upon activation of the sprinkler,
water is discharged in a predesigned spray pattern to con-
trol or extinguish the fire. The SG-R sprinkler responds to
fire much faster than standard sprinklers to help reduce fire
damage.
TECHNICAL DATA
Approval
ULlisted for residential use.
Maximum Working Pressure
175 psi ( 11.9 bar)
Discharge Coefficient
K Factor = 4.3 (62 Metric)
Temperature Rating
155°F (68°C), Bulb Color Red
Threads 1/2" (15 mm) NPT
Sprinkler Finishes
Natural Bronze,ChromePlated,White,BlackandAlmond.
INSTALLATION
Aspecially designed Model SG sprinkler wrench must be
used to install Model SG-R Sprinklers. Do not exceed 20 lb-
ft (27.1 N-m) of torque to prevent damage and ensure war-
ranty. Sprinklers should be installed according to the latest
published standards of the National Fire Protection Asso-
ciation. Sprinkler spacing and water flow rates must be in
accordance with this data sheet.
MAINTENANCE AND SERVICE
Sprinkler inspections should be made on a regular basis
to detect possible damage or alteration. Residential sprin-
klers should be replaced after 20 years of service, or if they
arepainted,corrodedor damaged. Asprinkler that has been
actuated cannot be reassembled or reused. Replacement
must be made with a sprinkler of the same size, type, K-
factor and temperature rating, and it must have flow and
pressure requirements compatible with the system hydrau-
licdesign. Maintenance mustcomplywithNFPAStandards.
CAUTIONS
•Star Galaxy Sprinklers are shipped with a factory applied
coatingofStar-Sealsealant.Star-Sealeliminatesthe need
for field applied compounds or tapes. Star recommends
that no additional pipe compounds or tapes be applied.
•Always store unused and spare sprinklers in a cool and
dry location.
•Never attach anything to sprinklers.
•Star Galaxy Sprinklers must be installed using one of the
specially designed sprinkler wrenches.
•Sprinklers must never be painted.
#2287 with #2084 Escutchean
