
4077AIRPARKDRIVE,STANDISH,MICHIGAN 48658 FAX989-846-9231989-846-4583
RA-8 BULLETINGL4247,REV.#3
OCTOBER2003
REPLACEMENTRESIDENTIAL
AUTOMATICSPRINKLERS
MODEL GL4247
ADJUSTABLECONCEALEDPENDENT
DESCRIPTION AND OPERATION
The Globe Model GL4247 Residential Adjustable Concealed Pendent Sprinkler is a low profile
yetdurabledesignwhichutilizesa3mmfrangibleglassampuleasthethermosensitiveelement. It
features economy,aestheticsand1/2"ofadjustment. Thecombinationofthe3mmfrangibleglass
ampule and specially designed deflector make the Model GL4247 Residential Adjustable Con-
cealedPendentSprinklertheultimateinlifesafetyandfirecontrol. Thisresidentialsprinklerhasmet
thestrictrequirementsofUnderwritersLaboratoriesInc.asdescribedintheULStandard,UL1626,
for Residential Sprinklers for Fire Protection Service, and should be used accordingly. These
sprinklersshouldalsobeinstalledinaccordancewiththeappropriateNFPAStandard13Ror13D.
Allthatisseenattheceilingisa35/16"diameterceilingplatecolorfinishedtomatchthespecifier's
exact requirements. Globe's Residential Adjustable Concealed Pendent Sprinkler utilizes its
pendentresidentialtypesprinklerwhichisconcealedfromviewbyadomeshapedceilingplatethat
concealsthesprinklerjustbelowtheceilinglineforfasterresponseoncetheceilingplatehasfallen
away. Theceilingplateissolderedtothesprinkler'sspecialuppersupportassemblyinthreeplaces.
Upontheapplicationofsufficientheat,theplatefallstothefloorexposingtheresidentialpendentspray
sprinkler. Attheampule'sratedtemperature,thesprinkleropensdischargingwaterontothefloorin
itsrequiredandapproveddistributionpattern.
TheheartofGlobe'sModelGL4247sprinklerprovenactuatingassemblyisahermeticallysealed
frangibleglassampulethatcontainsapreciselymeasuredamountoffluid. Whenheatisabsorbed,
theliquidwithinthebulbexpandsincreasingtheinternalpressure. Attheprescribedtemperaturethe
internalpressurewithintheampuleexceedsthestrengthoftheglasscausingtheglasstoshatter. This
resultsinwaterdischargewhichisdistributedinanapprovedpattern.
RESIDENTIAL
CONCEALED PENDENT
TECHNICAL DATA
See reverse side for Approvals and Specifications.
TemperatureRating-155°F(68°C).
Water Working Pressure Rating - 175 psi (12 Bars).
Factorytestedhydrostaticallyto 500psi(34Bars).
Maximumlowtemperatureglassbulbratingis-67°F(-55°C).
Frame - bronze Deflector - brass Screw - brass
Bulb seat - copper Spring - nickel alloy Seal - teflon
Bulb-glasswithalcoholsolution,3mmsize.
Cover Plate - brass
UpperEscutcheonAssembly-steel
SPRINKLER TEMPERATURE RATING/CLASSIFICATION and COLOR CODING
CLASSIFICATION AVAILABLE SPRINKLER
TEMPERATURES BULB
COLOR N.F.P.A.MAXIMUM
CEILING TEMPERATURE
ORDINARY 155°F 68°C RED 100°F 38°C