Omega R-1M
3-93
R-1M
Residential Pendent
Automatic Sprinkler
3/8" Orifice
Pendent
Automatic
Sprinkler
Maximum Working Pressure: 175 p.s.i.
Factory Hydro Test: 100% at 500 p.s.i.
Standard Finishes:
Sprinkler:
brass, chrome
plated and white
painted
Escutcheon: brass, chrome plated
and white painted
Highest Allowable Ambient Tempera-
ture: 100
°
F/38
°
C
Field Adjustment Range: 5/8"
(15.9 mm)
Length: 2 1/8"
(54 mm)
Width: 1 1/4"
(31.8 mm)
(Dust Cover)
Weight: 3.2 oz.
(90.7 grams)
alloy pellet. At the rated
temperature, the alloy melts,
causing the ball plunger to drop,
freeing balls from the retaining
groove. This movement allows
system water pressure to force the
orifice sealing mechanism and
deflector assembly open. Water is
then discharged in a pre-designed
flow pattern.
The Omega Model R-1M
Residential Pendent Automatic
Sprinkler is a low profile, aesthetically
pleasing, ceiling mounted sprinkler
that operates five to six times faster
than a standard sprinkler. It offers a
high degree of protection for human
life and features a spray pattern that
has been shown to be effective in the
control or extinguishment of fire.
The Model R-1M is Listed* by
Underwriters Laboratories as a
Residential Sprinkler with a K-factor
of 3.9, a temperature rating of
160
°
F/71
°
C, and a maximum working
pressure of 175 psi. It qualifies for
installation in residential occupancies
in accordance with current NFPA 13,
NFPA 13D and NFPA 13R.
The Model R-1M Residential
Pendent Sprinkler is available in three
standard finishes, brass, chrome
plated and white painted. Its mating
escutcheon plate is available in three
standard finishes, brass, chrome
plated and white painted with
additional special finishes available.
Operation: A fusible alloy pellet is
compressed with a bearing disc into a
copper housing by a ball plunger.
Heat is absorbed by the heat
collecting fins and conducted to the
Product
Description
Manufactured by: Central Sprinkler Company
451 North Cannon Avenue, Lansdale, Pennsylvania 19446
Model: R-1M
Style: Pendent (Adjustable)
Escutcheon: Model R-1A
Note: Only the Model R-1A
Residential Escutcheon may be
used. Substitution of other
escutcheons may impair the
operating sensitivity and
distribution pattern. The R-1M
may be installed below a ceiling
with the deflector up to the
maximum allowed by NFPA of 4".
Wrench: Omega Adjustable
Approvals: U.L., U.L.C.
Orifice Size: 3/8"
(9.5 mm)
K-Factor: 3.9
(55.77)
Thread Size: 1/2"
(12.7 mm)
N.P.T.
Temperature Rating: 160
o
F/71
o
C
Adjustment Range: Flush to Extended
Technical
Data
*For specific listing requirements see the appropriate
information contained in this brochure.
No. 1-18.0
OBSOLETE
