Reliable Concealer G4 Quick Start Manual

The Concealer
A Concealed Sprinkler
With ½" (13mm) or
1½" (38mm) Adjustment
Features
1. Cover plate assembly attachment (Plain
or Perforated) with ½" (13mm) adjustment.
Does not require clips or springs.
2. 1½" (38mm) Total adjustment provided by
adjustable inlet versions.
3. Adjustable inlet version available with either
1" NPT male or female threads eliminating
costly reducing coupling.
4. Smooth aesthetic ceiling profile.
5. Available in white or other color painted or
brass, chrome, or black plated finishes.
6. Ordinary and intermediate temperature
ratings.
7. Multiple orifices for design flexibility.
Approvals & Listings
1. Underwriters Laboratories Inc. (UL)
2. Underwriters Laboratories of Canada. (ULC)
3. N.Y.C. BS&A No. 587-75-SA.
Note: Approvals are for light and ordinary hazard, except for small
orifice sprinklers which are limited to light hazard occupancies.
The cup and skirt are fabricated from plated steel and are in-
tended for interior non corrosive applications.
U.S. Patent No. 4,880,063.
Application
The Reliable Model G4 Conceal-
er ® is the most versatile concealed
sprinkler available. It provides the
best form of fire protection while
offering an attractive appearance
and ½" (13mm) of cover adjustment for ease of instal-
lation. The adjustable 1" NPT inlet versions have 1
(38mm) of total adjustment and also eliminates the need
for a reducing coupling. The small diameter cover plate
assembly is easily attached and blends into the ceiling,
concealing the most dependable fire protection available,
an automatic sprinkler system.
The Reliable Automatic Sprinkler Co., Inc., 103 Fairview Park Drive, Elmsford, New York 10523
®
Model G4 Concealed
Automatic Sprinkler
The Concealer ®
pearance is important. Offices, hospitals, motels and restau-
rants are but a few of the applications where it can be used.
It is available in different orifice sizes allowing the designer
to optimize system performance, thereby achieving a most
efficient installation.
®
The Concealer
of drop nipples. The cover plate assembly can be adjusted
without tools so it mates accurately with the ceiling. The fire
protection system need not be shut down to adjust or remove
the cover plate assembly.
Product Description
The Reliable Model G4 Concealer
uses the proven Model G fusible element in a standard style
sprinkler frame with a drop-down deflector. This assembly is
recessed into the ceiling and concealed by a flat cover plate.
This threaded engagement provides ½" (13mm) of cover ad-
justment. The flat cover plate is attached to the skirt using
an ordinary temperature classification solder. This results in
a strong cover plate assembly with an ordinary temperature
rating, and an intermediate temperature sprinkler which can
be installed in 150°F (66°C) environments. When the ceiling
temperature rises, the solder holding the cover plate to the
skirt melts, the flat cover plate released thus exposing the
½
sprinkler inside to the rising ambient temperature.
"
The subsequent fusing of the sprinkler element opens the
waterway and causes the deflector to drop into position to
distribute the discharging water. Any secure engagement of
the threads between the cover plate and cup will assure that
the drop–down deflector is properly located below the ceiling
when a sprinkler operates.
Bulletin 121
is designed for use where aesthetic ap-
can eliminate the need for precise cutting
® standard response
K
Rev.