Catalogo generale 2013 (pdf) - Caccialanza & C.

SELF PRIMING INLINE INDUCTORS (V type)Inline inductors are suitable for foam systemswith fixed flowrate (only 1 foamoutlet or a fixed number of foamoutlets which must work simultaneously).It is the cheapestproportioning system, but itsproperly working is strictlyconnected to exactly definedoperating conditions (flowrate, pressure,pressure loss in the line between the premixerand the foam outlet). Even little deviationsfrom the nominal operating values (about +/-10%) cause the interruption of the aspiration ofthe foam compound.AROUND THE PUMP PROPORTIONERS(PP type)Around the pump proportioners are utilized forfoam systems on ships oron fire trucks where 1 ormaximum 2 differentflowrates are required(fire fighting ships with2 monitors for FiFi 1classification). The aroundthe pump proportioners are mounted in parallelto the water pump and aspirate automaticallya fixed flowrate of foam compound whichis added to the water flowrate supplied by thepump.PRESSURE PROPORTIONERS OR FOAMINJECTORS (ZR type)Foam injectors are utilized for foam systemswith different independent foamoutlets which can worksimultaneously or separatelyand are particularly suitableif the requirement is given tooperate simultaneously partof the outlets with water andpart of the outlets with foam (remote controlledfoam/water monitors systems).VENTURI BALANCE PRESSURE FOAM PRO-PORTIONERS FOR VARIABLE FLOWRATE(VZ-R type)The Venturi balance pressurefoam proportioners for variableflowrate are utilized for foamsystems with differentindependent foam outletswhich can work simultaneouslyor separately.The balance pressure foam proportioner forvariable flowrate regulate automatically thecorrect foam compound admixing percentageto a variable water flow in a range 1:10 (forexample, the same foam proportioner issuitable for admixing automatically the properfoam compound percentage in a foam systemwith 10 monitors both if only 1 monitor isworking singularly and if all monitors areworking simultaneously).PORTABLE LOW EXPANSION FOAMMAKINGBRANCH PIPES (LS type)Portable low expansion foammaking branchpipes are used in mobile hose lines withwater/foam premix and are suitable to producea low expansion foam for extinguishing fires offlammable liquids or of solid materials.Their purpose is to add air to the foam/waterpremix stream forming a fire extinguishing lowexpansion foam with an expansion rate ofabout 1:7. Portable low expansion foammakingbranch pipes can be used only inconnection with mobile inline inductors or withother foam proportioning systems.15www.caccialanza.eu