Machines and installations comprised thereof for processing liquids, solids and gases for general industrial use, including centrifuges, clarifiers, classifiers, cyclones, decanters, dewatering machines, diffusers, extraction towers, rotary vacuum drum filtering machines, disc filtering machines, pressure belt drum filtering machines, horizontal belt filtering machines, rigid belt filtering machines and pressure filtering machines, flocculators, flotation machines, hydrocyclones, liquid separating machines, mixers, centrifugal pumps and diaphragm pumps, all pumps being for general industrial use including mixing, reacting, homogenizing, dispensing, disintergrating and macerating, repulpers, screening machines, sieve bands, settlers, slakers, mechanized mixing tanks, thickeners, and wash machines

Water, wastewater and sewage treatment systems and installations including aerators, biological treatment apparatus, clarifiers, digesters, distributors, filters, fluid bed furnaces for combusting, drying and incinerating pumps, screens, settlers, sludge mixers and tanks, all sold as components of the aforesaid systems and installations; fluid bed furnaces for calcining, roasting, drying, cooling and incinerating for general industrial use