Specifications (11) CENTRAL GB . 8 -94
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Sprinkler . _ y pp.
Upright Pendent and Recessed 1 .
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Pendent - I
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Glass Bulb Automatic Sprinkler
Manufactured by: Central Sprinkler Company =J
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451 North Cannon Avenue, Lansdale, Pennsylvania 19446 _ --� __ _
iii Product Technical
Description Data. -ti. .
• The Central Model GB Upright and Model: GB : ~ 'J -���
Pendent and Recessed Pendent Style: Upright, Pendent or Recessed : ' ''
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Automatic Sprinklers are standard Pendent (adjustable)
E scutcheon: Model GB '/z” Recessed ;j f
spray sprinklers. They incorporate the
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Note: For the ecessed version, only the •
latest in heat - responsive, glass bulb d y k 0
technol which results in a much Model GB 1/2" Recessed
smaller more attractive sprinkler than Escutcheon assembly may be _ r -y
used. Substitution of other: -:.�
those manufactured with a more "recessed" escutcheons may ,� j: e *
traditional design approach. The impair the operating sensitivity and _ . _ _ .
operating mechanism consists of a distribution pattern and void - -
liquid - filled 5 mm diameter frangible manufacturer's warranty. -
capsule that is only 1.6 cm in length. Orifice Size: 1/2" (12.7mm)
The Model GB Automatic Sprinklers K- Factor: 5.6 (80.08) nominal ;.. ,
are intended for installation in Thread Size: ' /z" (12.7 mm) N.P.T. _
accordance with current NFPA 13 Temp. Rating & Glass Bulb Color:
Standards. They are available in ' /2' 135 °F /57 °C Orange _ .
orifice size and a variety of 155 °F /68 °C Red ; ? : \ .
temperature ratings, finishes and
175 °F /79 °C Yellow :j p ' (7 '':•,-
200 °F /93 °C Green ',,
decorative coatings. 286 °F /141 °C Blue
The Model GB Recessed Glass Bulb
360 °F /182 °C Purple ( ° not F.M
Automatic Sprinkler incorporates a
Approved) ;
significant cost saving feature; a 2- Approvals: UL, U.L.C, F.M. 3; ,omob ?:
piece special escutcheon assembly Meets: MIL - STD - 910C, MIL - STD - 167 - 1, j
that provides for %" of field adjustment and MIL- STD -810 -C shock, L _
resulting in an easily accomplished vibration, and salt fog tests for r .
tight fit against the ceiling. maritime applications. -- .
Maximum Working Pressure: 175 p.s.i.
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Operation: The glass bulb capsule Factory Hydro Test: 100% at 500 p.s.i. 11
operating mechanism contains a Standard Finishes:
o 1 /2 Orifice
P 9 Sprinkler: brass or chrome plated
sensitive liquid that expands upon Escutcheon: brass or chrome plated Automatic
application of heat. At the rated Corrosion - Resistant Coatings (U.L. Only):
temperature, the frangible capsule white and black painted
ruptures thereby releasing the orifice Highest Allowable Ambient Temperature for S p r' n k 1 e r
seal. The sprinkler then discharges Storage of Sprinklers: 100 °F /38 °C
water in a pre- designed spray pattern Adjustable Range Below Ceiling:
to control or extinguish the fire. 3 /4" to 1
Length: 2" (31.8 mm) �� ,� (�
Width: 1 " (25.4 mm) (frame arms) a ���Z/ 9 OD / �(7 7
Weight: 2.0 oz. (56.7 grams) Pendent ,,, ,2 OD -:6,---1 1
For specific listing requirements. see the appropriate 2.5 oz. (70.9 grams) Upright
information contained in this brochure 3.5 oz. (99 grams) Recessed Pendent
No. 3.6.0