the wetting (i.e., cold soldering) of the heat responsive
element (Bulb) of a non-operated Star Galaxy SG-R,
which is adjacent to one which has operated.
Heat Source Criteria.
Refer to NFPA 13D or NFPA 13R
for the requirements relating to preventing the possible re-
lease of a Star Galaxy SG-R heat responsive element
(Bulb), due to exposure to heat sources other than abnor-
mal fire.
INSTALLATION
The Star Galaxy SG-R must be installed in accordance
with the following instructions:
NOTES
Do not install any bulb type sprinkler if the bulb is
cracked or there is a loss of liquid from the bulb. With
the sprinkler held horizontally, a small air bubble with
an approximate diameter of 1/16 inch should be pre-
sent.
A leak tight 1/2 inch NPT sprinkler joint should be ob-
tained with a torque of 7 to 14 ft.lbs. (9,5 to 19,0 Nm).
A maximum of 21 ft.lbs. (28,5 Nm) of torque is to be
used to install sprinklers. Higher levels of torque may
distort the sprinkler inlet with consequent leakage or
impairment of the sprinkler.
Do not attempt to compensate for insufficient adjust-
ment in an Escutcheon Plate by under- or over-tight-
ening the Sprinkler. Readjust the position of the sprin-
kler fitting to suit.
1. The sprinkler must only be installed in the pendent position
and with the deflector parallel to the mounting surface.
2. After installing the #2084 mounting plate (or other accept-
able escutcheon, as applicable) over the sprinkler pipe
threads and with pipe thread sealant applied to the pipe
threads, hand tighten the sprinkler into the sprinkler fitting.
3. Wrench tighten the sprinkler using only a W-Type 9 Sprin-
kler Wrench (Ref. Figure 3) for pendent sprinkler installa-
tions or the W-Type 10 Wrench (Ref. Figure 4) for re-
cessed pendent sprinkler installations. The wrench recess
is to be applied to the sprinkler wrench flats (Ref. Figure
1).
STAR SPRINKLER
1-3.2.10
Page 3
FIGURE 3
W-TYPE 9
SPRINKLER
WRENCH
FIGURE 4
W-TYPE 10
RECESSED
SPRINKLER
WRENCH
WRENCH
RECESS
FIGURE 1
STAR GALAXY SG-R RESIDENTIAL
PENDENT SPRINKLER
2-3/16"
(55.7 mm)
WRENCHING
AREA
NOMINAL MAKE-IN
7/16" (11.1 mm)
(38.1 mm)
1-1/2"
PLATE
SEATING
ESCUTCHEON
SURFACE
NPT
1/2"
SPRINKLER
FACE OF
FITTING
SURFACE
MOUNTING
1/8"
(3.2 mm)
1" (25.4 mm)
1-1/4" (31.8 mm)
1/4" (6.4 mm)
1/2" (12.7 mm)
1/2±1/8"
(12.7±3.2 mm)
CLOSURE
PLATE
MOUNTING
2-1/4" DIA.
(57.2 mm)
(73.0 mm)
2-7/8" DIA.
SG-R
FIGURE 2
STAR GALAXY SG-R RESIDENTIAL SPRINKLER
WITH #2084 RECESSED ESCUTCHEON
OBSOLETE
