NARO® SYSTEM is a multistage system with feed and bleed configuration, i.e. with continuous discharge of the concentrated phase, that with a variable distribution of the operating pressure in the loops gives the following advantages compared with the traditional systems:

	lower energy consumption
	best performance of the membranes, in terms of rejection and fluxes
	investment and operating costs more competitive

NARO® SYSTEM is extremely flexible as regards operating parameters; for example, the working pressure, that is the main operating parameter driving the volumetric concentration factor as well as the permeate flux, also influenced by the dissolved solids content, is automatically controlled in a wide range, up to 120 bar. In NARO® SYSTEM the membrane area is distributed in a series of independent loops (each composed by recirculation pump, instrumentation, membranes), with series/parallel configuration of the membranes depending on the characteristics of the fluid to be treated.
The complete unit is made up by prefeed line, pretreatment and conditioning of the liquid, pumping group for pressurizing the liquid in the loops and CIP system for automatic cleaning.