EngineeringSpecitications
Vane-type waterflowdetectorsshallbe installedonsystempipingasdesignated on the drawingandlorasspecifiedherein
Detectorsshallmountonanyclearpipespanofthe appropriate nominalsize,eitheraverticalupflowor horizontal run,at least
6" fromanyfittingswhichmaychangewaterdirection, flow rate,or pipediameteror nocloserthan24" froma valveor drain.
Detectorsshallhavea sensitivity in the rangeof 4 to 10gallonsperminuteanda staticpressure ratingof 450 psi* for 2" '8"
\
pipes.Thedetectorshallrespond to waterflowin the speci'fledirectionaftera presettimedelaywhich is lleldadjustableThe
delaymechanism shallbea sealedmechanical pneumaticunitwith visualindicationof actuation.Theactuationmechanism
shallincludea polyethylene vaneinserted througha holein the pipeandconnectedbyamechanical linkageto the delaymech-
anism.Outputsshallconsistof dualSPDTswitches(FormCcontacts).Twoconduitentrances for standard fittingsof commonly
usedelectricalconduitshallbeprovided on the detectors.A groundingprovision is provided. Unlessnoted,enclosureshallbe
NEMA4listed byUnderwriters Laboratories Inc.All detectorsshallbe listedbyUnderwriters Laboratories lnc.for indooror out
dooruse.
StandardSpecitications
StaticPressureRating
450PSt*
Triggering ThresholdBandwidth (Fow Rate)
4,10GPI\4
N,laximum Surge
1a FeetPerSecond(FPS)
CompaliblePipe:
sieel waterpipe,schedule10 through40
condultEntrances
Twoopenings for 1l" conduit.Oneopen,one
Operating Temperature Range
32'F to 120'F (o'c io 49'c)
EncosureRating*
NEI\,4A 4 suitablefor indoor/outdoor use
coverTamper switch
Standard withtJLCmodels
OptionaL iorULmodels, partno.54670OO
Shppingweight
WFD2O:4.2lbs.
WFD40:5.2 bs.
WFD25:4.3 lbs.
WFD50:6.3 lbs.
WFD302r 4.5 lbs. WFD60:6.8 lbs.
WFD35:4.7bs.
WFD80:7.5 lbs.
AutomaticSprinklenNFPA-13
Oneor TwoFamilyDweling:NFPA13D
Residential Occupancies 1rp to 4 Storles:NFPA13R
NationalFireA armcode:NFPA72
3 Years
ContactRatings
Twosetsof SPDT (FormC)
70.AA, 7/2 HP@1251250VAC
2.54@6/ t2/24VDC
lJ.S.PatentN!mb€rs
3,445,259
4,7a2,333
5,273,205
Overa I Dimensions l.stalled:
orderingInformation
ULModelNumbers ULC/Canadian IVodelNumbers PlpeSlze
Hole Size
WFD2O
WFD2OA
2'
11/4"
WFD25
2v2"
1Uq"
WFD3O.2
WFD3O.24
2'
WFD35
WFD35A
71/+"
2'
WFD5O
WFD5OA
WFD6O*
WFD6OA
2'
WFDSO*
WFDSOA
a"
2'
Tamperprooiswitchkit
Tamperproofwrenchfor cover
*Maximumpresslreraiing400 psi asapprovedby FactoryMutua.
SystemSensolSalesandService
SystemSensorHeadquarters
3825OhioAvenue
St.Charles, lL 60174
Ph:800/SENSoR2
Fxt 630 / 377-6495
Documents-on-Demand
aOO/7367672x3
SystemSensorCanada
Ph:905.812.0767
Fx:905.812.0771
SystemSensorEurope
Pht 44.t4O3.276500
Fx: 44.7403.276501
system sensor in China
Ph: 46.29.524.6253
Fx:86.29.524.6259
SystemSensor in Singapore
Ph:65.273.2230
Fx:65.273.2610
SystemSensor - FarEast
Ph:45.22.191.9003
Fx:85.22.736.6580
SystemSensor - Australia
Ph: 613.54-241.142
Fx:6L3.54.281.L72
SystemSensor - India
Pht 9a.7a.526.2179
Fx. 97.71.527.6445
O2001svstem sensor.Thecompanyreservesthe righi to changeproductspecilcationswithout notice,
A0501aG007.4/01'f414
