Globe GL4247 Description And Operation

D
ESCRIPTION AND
The Globe Model GL4247 Residential Adjustable Concealed Pendent Sprinkler is a low profile
yet durable design which utilizes a 3mm frangible glass ampule as the thermosensitive element. It
features economy, aesthetics and 1/2" of adjustment. The combination of the 3mm frangible glass
ampule and specially designed deflector make the Model GL4247 Residential Adjustable Con-
cealed Pendent Sprinkler the ultimate in life safety and fire control. This residential sprinkler has met
the strict requirements of Underwriters Laboratories Inc. as described in the UL Standard, UL 1626,
for Residential Sprinklers for Fire Protection Service, and should be used accordingly. These
sprinklers should also be installed in accordance with the appropriate NFPA Standard 13R or 13D.
All that is seen at the ceiling is a 3 5/16" diameter ceiling plate color finished to match the specifier's
exact requirements. Globe's Residential Adjustable Concealed Pendent Sprinkler utilizes its
pendent residential type sprinkler which is concealed from view by a dome shaped ceiling plate that
conceals the sprinkler just below the ceiling line for faster response once the ceiling plate has fallen
away. The ceiling plate is soldered to the sprinkler's special upper support assembly in three places.
Upon the application of sufficient heat, the plate falls to the floor exposing the residential pendent spray
sprinkler. At the ampule's rated temperature, the sprinkler opens discharging water onto the floor in
its required and approved distribution pattern.
The heart of Globe's Model GL4247 sprinkler proven actuating assembly is a hermetically sealed
frangible glass ampule that contains a precisely measured amount of fluid. When heat is absorbed,
the liquid within the bulb expands increasing the internal pressure. At the prescribed temperature the
internal pressure within the ampule exceeds the strength of the glass causing the glass to shatter. This
results in water discharge which is distributed in an approved pattern.
T D
ECHNICAL ATA
See reverse side for Approvals and Specifications.
Temperature Rating - 155°F (68°C).
Water Working Pressure Rating - 175 psi (12 Bars).
Factory tested hydrostatically to 500 psi (34 Bars).
Maximum low temperature glass bulb rating is -67°F (-55°C).
Frame - bronze Deflector - brass
Bulb seat - copper
Bulb - glass with alcohol solution, 3mm size.
Cover Plate - brass
Upper Escutcheon Assembly - steel

SPRINKLER TEMPERATURE RATING/CLASSIFICATION and COLOR CODING

CLASSIFICATION
ORDINAR Y
4077 AIRPARK DRIVE, STANDISH, MICHIGAN 48658
OCTOBER 2003
O
PERATION
Screw - brass
Spring - nickel alloy
AVAILABLE SPRIN KLER
TEMPERATURES
155°F 68°C
REPLACEMENT RESIDENTIAL
AUTOMATIC SPRINKLERS
MODEL GL4247
ADJUSTABLE CONCEALED PENDENT
Seal - teflon
BULB
COLOR
RED
RA-8
RESIDENTIAL
CONCEALED PENDENT
N .F.P .A. MAX IMUM
CEILIN G TEMPERATURE
100°F
989-846-4583 FAX 989-846-9231
BULLETIN GL4247, REV. #3
38°C