997 The first pump to be triggered is the jockey pump in the set. If this pump cannot restore the pressure level, then one of main pumps starts. Since there is more than one main pump, the pumps start in cascade sequence with the starting pressure switches set at different pressure levels. The pressure switches of the main pumps are used for automatic starting and adjustable time automatic stopping. Weekly test system is included in the sets which are above 7,5 kW main pumps’ power. The membrane type of expansion tank with the capacity of 24 liters-16 bar execution is being mounted in fire pumps set for the absorbtion of water hammer. Pumps Main pumps are: NMD Series: Horizontal, Monoblock, end-suction, bronze fitted centrifugal pumps WTM Series: Horizontal, close-coupled, end-suction, centrifugal pumps For NMS and WTM pumps; our standard delivery is cast iron execution. Bronze fitted executions are optional. Jockey Pump is: TP Series: Horizontal, monoblock, peripheral constructed centrifugal pumps MV series: Vertical, multi-staged, stainless steel constructed off-line centrifugal pumps. All pumps are mechanical sealed. The maximum pressure developed by the jockey pump is always greater than the pressure of the main pumps. Electric Motors: • 2-pole induction type, 50 Hz, n=2900 rpm, IEC standardized, TEFC Type • Three-phase 230/400V +/-10% up to 3 kW, 400/690V +/-10% 4kW and higher • Insulation Class F • Protection Class IP55 • Construction in accordance with IEC 60034 Designation of Fire Pumps Set FIREPAK - E 2 1 - 120 / 80 - WTM 80-250 / 55 + DJ MV FIREPAK: Package Type Fire Pumps Set E: All pumps in the set electric driven 2: No. main pumps 1: no. jockey pump 120: Rated Flow per main pump (m3/h) 80: Rated Pressure (Hm) WTM 80-250/55: 1 main + 1 stand by pump DJ MV: Jockey Pump Set FIREPAK - ED 2 1 - 120 / 80 - WTM 80-250 / 55 + EKM 4102 + DJ MV FIREPAK: Package Type Fire Pumps Set ED: 1 electric main + 1 diesel driven stand by pump 2: No. main pumps 1: no. jockey pump 120: Rated Flow per main pump (m3/h) 80: Rated Pressure (Hm) WTM 80-250/55: Electric driven main pump EKM 4102: Diesel Driven Main Pump DJ MV: Jockey Pump Set Construction Fire pumps set constructed for feeding water to automatic fire fighting systems and units with hydrants and sprinklers. Units are composed of 2 main pumps and one jockey pump set with which the system pressure level can be maintained without having to start the main pumps. The main pumps are always one active + 100% one stand by, and stand by main pump can be either electric driven or diesel driven. Operation The pumps start operating after a fall in the pressure level in the fire extinguishing system. Fire Pumps Set FIREPAK-E21 & FIREPAK-ED21
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FIREPAK-E21 & FIREPAK-ED21 · Firepak -E21 Fire Pumps Set Electric Controller features are as follows; This equipment enables automatic or manual management of an electric Start-delta
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Transcript
997
Thefirstpumptobetriggeredisthejockeypumpintheset.Ifthispumpcannot restore the pressure level, then one of main pumps starts.Since there is more than one main pump, the pumps start in cascade sequencewiththestartingpressureswitchessetatdifferentpressurelevels.
The pressure switches of the main pumps are used for automatic starting andadjustabletimeautomaticstopping.Weeklytestsystemisincludedinthesetswhichareabove7,5kWmainpumps’power.Themembranetype of expansion tank with the capacity of 24 liters-16 bar execution is being mounted in fire pumps set for the absorbtion of water hammer.
Pumps
Main pumps are: NMD Series:Horizontal,Monoblock,end-suction,bronzefittedcentrifugal pumpsWTM Series:Horizontal,close-coupled,end-suction,centrifugalpumpsForNMSandWTMpumps;ourstandarddeliveryiscastironexecution.Bronzefittedexecutionsareoptional.
Firepumpssetconstructedforfeedingwatertoautomaticfirefightingsystems and units with hydrants and sprinklers.
Units are composed of 2 main pumps and one jockey pump set with which the system pressure level can be maintained without having to start the main pumps.
Themainpumpsarealwaysoneactive+100%onestandby,andstandby main pump can be either electric driven or diesel driven.
OperationThe pumps start operating after a fall in the pressure level in the fire extinguishing system.
Diesel Engines:DieselenginesareequippedwithNMD,NMSandWTMseriesofourpumps.They are direct-injection types fitted with electric control box, fuel tank, starter battery and exhaust silencer.The cooling of engine can be by air, or water cooled by internal cooling system loop.
with suction and discharge manifolds as a package type, ready for use.• Thecontrollersofpumpsarealsobeingmountedınthiscommonbaseplatecompletewithinternalcablingbetweencontrollersandmotors/engines.
• Eachmainpumpinthesystemhasitsowneccentricreducer+butterflyvalveatsuctionsideandconcentricreducer+butterflyvalve+checkvalve at discharge side.
being mounted on discharge manifold.• Jockeypumpisfittedwithinlet/outletvalvesandcheckvalveanddryrunningprotectionfloatswitchequippedinitscontrolleronthecommon base plate of fire pumps set.
Electric BoxesFirepak-E21FirePumpsSetElectricControllerfeaturesareasfollows;ThisequipmentenablesautomaticormanualmanagementofanelectricStart-delta starting pump according. They are assembled in painted sheet metalhousingwithIP55protectionclassandmadeinaccordancewiththeCEIstandardsinforce.• ElectricStar-Deltastartingpumpelectromechanicalpanel.
motor and supply of auxiliary circuits• Verylowvoltageinputforcontrolfrom1piecescall/startpressure
switches in series• Electronicunitfordieselpumpcontrol• SelectorwithpushbuttonAUT-MAN,inautomaticpositionstartingofthedieselpumpbyelectronicunitinMANUALpositionstartingofthediesel pump by start push button of the electronic unit