Tyco Fire Product CENTRAL GB Instruction Manual

GB & GB-QR Dry Sidewall
Standard and Quick Response
Flush, Recessed or Extended
Glass Bulb Sprinkler
Manufactured by: Central Sprinkler Company
451 North Cannon Avenue, Lansdale, Pennsylvania 19446
Product
Description
The Model GB and GB-QR Quick
Response Dry Horizontal Sidewall Glass
Bulb Sprinklers allow the installation of
sprinklers in areas subject to freezing
while being supplied from a wet pipe
sprinkler system. They are available in
standard response (5mm bulb) or quick
response (3mm bulb).
A significant installation feature for the
extended version is the built in 3" (76.2
mm) of adjustment. This allows installa-
tion of common lengths and can com-
pensate for field variations.
Because the Model GB and GB-QR Dry
Horizontal Sidewall is allowed with NFPA
13 spacings for sidewall sprinklers in
either light or ordinary hazard, it can throw
considerably further than the alternative
method suggested in NFPA 13 for a dry
sidewall sprinkler on a 45° angle.
The GB Dry Sidewall sprinkler is
available flush or extended and the GB-
QR dry sidewall is available recessed,
flush or extended. Both versions are
available with a special slatted wall
escutcheon. This escutcheon
compensates for the angle of the siding
on the outside of the wall.
A larger wrench boss allows the
sprinkler to be installed into the
branchline tee using a sprinkler wrench.
This allows easy installation in "hard"
walls such as sheet rock as the barrel of
the dry sidewall would be inaccessible.
The Model GB and GB-QR Dry
Sidewalls have a maximum adjustment of
±1
1
⁄ " (38.1 mm) in the extended version,
2
allowing ease of field installation and
ordering. The Model GB dry sidewall is
available recessed or flush for situations
that require a more aesthetic appearance.
GB & GB-QR Dry Sidewall
Operation: The glass bulb capsule
operating mechanism contains a heat-
sensitive liquid that expands upon
application of heat. At the rated
temperature, the frangible capsule
ruptures, thereby releasing the orifice
seal. The sprinkler then discharges
water in a pre-designed spray pattern
to control or extinguish the fire.
Technical
Data
Model: GB and GB-QR Dry Sidewall
Style: GB: Flush or Ext. Only
GB-QR: Flush, Rec., Ext.
Escutcheon: Recessed or Extended
Wrench:
Offset (flush & extended) Part #1068
Universal (recessed sidewall) Part
#1069
Orifice Size: 1 ⁄ " (12.7 mm)
2
K-Factor: See K-Factor Table on Page 2.
Thread Size: 1" (25 mm) N.P.T.
Temperature Rating & Bulb Color:
135°F/57°C
155°F/68°C
175°F/79°C
200°F/93°C
*286°F/141°C
*360°F/182°C
*Standard Response Only.
Approval: U.L., U.L.C.
Maximum Working Pressure:
175 psi (12.1 bar)
Factory Hydro Test: 100% at
500 psi (34.5 bar)
Standard Finishes: brass, chrome
plated, white
Escutcheon: brass, chrome plated and
white painted
1 "
⁄
2
Orifice
Dry Sidewall
Automatic
Sprinkler
Corrosion-Resistant Coatings (U.L.
Only) : white and black painted
Highest Allowable Ambient Storage
Temperature: 100°F/38°C
Orange
Red
Yellow
Green
Blue
Purple
1-98
(12.7 mm)
No. 5-6.0