Automatic duplex carbon filters to be used in the reduction by absorption of pollutants in solution such as: COD, surfactants, pesticides, hydrocarbons, odors, flavors, etc. and catalytically of chlorine. They are specifically used in various primary or waste water treatment processes.

They operate with two cylinders in parallel service and washing in sequence with each other. During washing, the filtration service can be ensured from a single cylinder, therefore with reduced production, if the hydraulic flow rate is adequate.

Consisting of:

• N ° 2 cylindrical TANKS entirely made of fiberglass soaked in epoxy resin with an internal shell in hot blown PE, vertical execution with rounded bottoms and sturdy support base in GRP. Operating pressure: max 10 bar, operating temperature: 1-50 ° C, certifications: DM 174/2004, directive 97/23 / CE (PED); WRC; ZEFU / TUV; UDT; 
• N ° 2 lower internal distribution SYSTEM in 0.5 mm micro-cracked PP;
• N ° 2 pneumatic monolithic VALVES in Noryl and glass fiber V363 on the side of the cylinders for the management of filtration and washing operations;
• N ° 1 PIPING for connection and interconnection between the columns, partial and total by-pass consisting of pipe and valves in PVC-U PN 16 (on request and with possible surcharge in PE or AISI 304/316); < / li>
• FILTER BED composed of activated carbon compliant with the UNI EN 12904: 2005 standard;
• N ° 1 management and control PANEL equipped with n ° 4 AISI 304 pressure gauges in glycerine bath;
• N ° 1 electronic differential PRESSURE SWITCH (optional);
• N ° 1 electronic CONTROL UNIT equipped with EPROM with digital display and visualization of operating status, cycle regulation, buffer battery; Power supply 230V 50 Hz for the management and control of automatic regenerative cycles with start in "Manual" mode, "Pressure Differential" mode, "Time" mode, mixed "Time" mode and in emergency mode from "Pressure Differential";
• N ° 1 SKID AISI 304 equipped with fixing collars, which allows an optimal assembly and a comfortable movement of the filter.