CO2 High Pressure System

C O 2 Hig h Pressure Fire E xtinguishing System

CHaraCtEriStiCS• Suitableforextinguishinginclosedspaceslikeenginerooms,auxiliaryrooms,cargoholds,etc.

• Extinguishthefirewithinashorttimeandleavenoresidueafterextinguishing:shut-downtimeafterafirewillbereducedtoaminimum

• Suitableforextinguishingfiresincombustibleliquids,gasesandelectricalequipment,andforextinguishingsmoulderingfiresinwood,paper,textiles,etc.

• Installedasatotalfloodingcentralbanksysteminclusiveanumberofdistributions

• Normallyinstalledwithpneumaticrelease,butcanalsobesuppliedwithmechanical,electrical,andmanualrelease

DanfossSemcoCO2systemsmeetanumberofinternationalclassrequirements,includingLRS,DNV,BV,PRS,CCS,ABS,GL,RMRSandNK,aswellasnationalauthorities.

COnStruCtiOn.TheDanfossSemcoCO2systemconsistsofoneormorepressurecylinderscontainingtheextinguishingagentCO2.Thecylindersareconnectedviaacommonmanifold.

Fromthemainmanifold,theextinguishingagentisledthroughdistributionvalvestotheprotectedspaces.

Thevalveconstruction,cylindersize,andcylinderpressure,combinedwiththecomputercalculatedpipeandnozzledimensioning,ensuresthattheextinguishingagentisdistributedincorrectquantitiesandwithinthepre-scribedtime.Thereleaseisactivatedpneumatically,electricallyand/ormechanically.

DanfossSemcopressure-operatedcylindervalvesofferthepossibilityofconnectingCO2cylindersingroupsoperatedpneumaticallyfromoneormorereleasecabinetsequippedwithCO2gascylinders.Thereleasecabi-netsareequippedwithpilotvalvesforuseinopeningcylindersanddistributionvalvesbypipeconnections.Forpneumaticoperation,thebuilt-inactuatorisusedforeachcylindervalve.Theseareconnectedtotheothercylindervalvesinthegroupviaseries-connected,flexiblehigh-pressurehoses.

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A. Cylinder batteryB. Distribution valveC. Handle No. 1D. Handle No 2G. Control cylinder(s) (main and spare)H. Release boxI. Pressure operated switch

K. Micro switches for start of alarm and stop for ventilationL. Control line No. 1M. Control line No. 2N. Bleeder valveO. CylinderP. Pneumatic timer

CO2 CylindErS.Thecylindersaredeliveredas67.5-litresteelcylindersfilledwith45kgofCO2,oralter-nativelyas80-litresteelcylindersfilledwith53.6kgofCO2.Toenableremotecontrolandquickrelease,thecylindersaresuppliedwithDanfossSemcopressureoperatedquickopeningvalves,whichalsoofferthepossibil-ityofmanualoperation.

Thevalveconstructionsecuresagainstdamagingoverpressureinthecylinder,asthevalvehasabuilt-inburstingdisc,activatedatanominalpressureof190bar.

CO2 rOOm.Thecylindersarenormallystoredinaseparate,well-ventilatedandinsulatedroom,wherethetemperatureiskeptbetween0°and40°C.Theroommusthavefreeaccesstoopenair.Theroomshouldhaveaminimumclearheightof2.4mtoprovideadequatespaceforthemountingofmanifoldsandweighingbeamsforcheckweighingofthecylinders.

CHECking EquiPmEnt.Thecylinderscanbecheckedbyaweighingdeviceorliquidlevelmeasurement.

SPECial EquiPmEnt. Toreducethe installationtimeinCO2roomsonboardships,cylinderarrange-mentsmountedinracksconsistingofupto100piecesof45/53.6kgcylinders,completewithmanifoldandfixingequipment,canbesupplied.

C O 2 E xtinguishing System: releas e System

tHE PrESSurE COntrOllEd CylindEr ValVE. AllDanfossSemco’sreleasesystemsarebasedontheuniquepressureoperatedcylindervalve.Thisvalveisusedinallsystemsinwhichpressurecylinders(CO2andN2)formapart.CO2cylinders,withcontentsofupto60kgdischarge,canbereleasedwithinoneminute.Valvehousingsandinternalpartsaremadeofbrassorstainlesssteel,withtighteningmaterialsofneopreneorcopper.

Thevalveisconstructedasacombinedpressureoperatedquickopeningvalvewithhandwheelformanualopening.

TheDanfossSemcovalveisdesignedwithauniquefunctionthatenablestheusertoperformarealcheckofthevalvefunction.Byopeningthecontrolvalveforreleasingthecylinderswhileleavingthedistributionvalveclosed,themanifoldwillbepressurised.Itcanthenbeprovedthateachvalveisopened.Byclosingthecontrolvalve,thereleasepipingsystemwillberelievedandthecylindervalveswillclose.Thisfunctionisrequiredbysomeclassesandauthorities.

PnEumatiC rElEaSE SyStEm.Total flooding systems require groups of cylinders to be releasedsimultaneously.Forthispurpose,pneumaticallyoperatedcylindervalvesareusedinconjunctionwiththepilotpressurefromthemasterreleaseboxcontainingcontrolcylinder(s)(CO2orN2),twocontrolvalves,apressuregauge,andoneortwodoorswitches.

Asanoption,thesystemcanbesuppliedwithapneumatictimedelaydevicetodelaytheopeningofthemainvalve.EmergencyreleasefromtheCO2roomcanbemadebymanuallyopeningthecylindervalveandthenoperatingthetwolocalcontrolvalves.

Th eDanfossSemcoQAsystemisinaccordancewithENISO9001:2000andiscertifiedbyDNV.

Ourongoinginternaltrainingprogramsmakeouremployees–navalarchitects,salesengineers,projectmanagers,serviceengineers,etc.–fullyqualifiedtohandleourfirefightingsystemsforthemarineindustry.Animpor-tantelementistheuseofanapprovedcomputerprogramforhydrauliccalculations,whichsecuresaquickandprecisesystemdesign.

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CO2, Foam, dry Chemical Powder

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