Catalogo generale 2013 (pdf) - Caccialanza & C.

FOAM COMPONENTS14Caccialanza & C. is producing thecomplete range of foam componentsfor all different types of fixed firefighting foam systems, such us:HEAVY FOAM-MAKING BRANCHPIPES (L-st type)Their purpose is to add air to the foam/waterpremix stream forming a fire extinguishingheavy foam with an expansion rate of about1:7.FOAM CHAMBERS (STO type)Foam chambers are installed on top pouringfoam systems for fixed roof tanks. Their purposeis to avoid the outflow of flammable vaporsfrom the fixed roof storage tank through thefoam system pipes, and to allow the testing ofthe foam system without introducing foam intothe fixed roof tank. For this purpose the foamchambers are provided with a sealing glassdiaphragm (which in normal conditions avoidsthe outflowing of the flammable vapours fromthe tank and in fire conditions breaks due tothe foam pressure allowing the inlet of theextinguishing foam into the tank) and with aremovable cap.FOAM POURERS (SK, SKC and SKG type)Foam pourers are designed to be installed atthe end (outlet) of the foam linesof low expansion foamsystems on fixed rooftanks (mounted insidethe tank) or on floatingroof tanks (mounted ona splash board).They are intendedto bring the foam jet smoothly along the tankwall onto the surface of the flammable liquidinside the tank (without splashing on it).MEDIUM EXPANSION FOAM MAKING BRAN-CHPIPES (LM type)Medium expansion foammaking branch pipes forfixed installation areare generally mountedin medium expansion foamsystems for the protection of dyke areas, pumphouses, loading bays, wharfs (foam at sea),plants and airport landing strips. Mediumexpansion foam making branchpipes aresuitable for foam production and for pouring ofthe foam. Their purpose is to produce a highvolume of foam (expansion rate about 1:80)which at the same time is sufficiently stableand heavy not to be blown up by wind or by thethermic of a fire.HIGH EXPANSION FOAM GENERA-TORS (GTtype)High expansion foam generators for fixedinstallation are mounted on high expansionfoam systems for the protection ofbig storage rooms andcontaining basins.for LPG spherical tanksTheir purpose is to producea very high volume of foam(expansion rate 1:600) containinga very little percentage of water in order to fillwithin shortest time big volumes (storagerooms) avoiding at the same time the waterdamage.LOW EXPANSION FOAM NOZZLES(U3 type)Low expansion foam nozzles aremounted on low expansion foamsystems with open sprinkler forthe protection of oil loading bays,airport hangars and big storescontaining flammable liquids.Their purpose is to produce a rain of lowexpansion foam (expansion rate about 1:6).www.caccialanza.eu