Bobbin-wound sand filters in polyester/fibreglass resin.
Cover of Ø 240 with screw closure, die-injected for diameters up to900 mm.
Cover of Ø 400 with screw closure, in polyester/fibreglass forØ 1050 and Ø 1200 mm.
Blue satin-finish, with dust protection with a clear polyurethane flash coat for Ø 500, Ø 600, Ø 750 and Ø 900. Blue finish for Ø 1050 andØ 1200.
Equipped with collectors and diffuser of highly resistant PVC and PP plastic.
Fitted with pressure gauge and manual air and water bleeder valves. Formodels of Ø 900, Ø 1050 and Ø 1200, includes sand drain of 2” sand purge.Resistance and safety
Side-mount, 6+1 way selector valve for filter, backwash, rinse, recirculate,waste and closed, except for models of Ø 500, Ø 600 and Ø 750.
Maximum flow rate: 50 m3/h/m2.
Maximum operating pressure: 2,5 kg/cm2.
Inner coating of HDPE (polyethylene), blown for Ø 500 and Ø 600mm, thermoformed ABS for Ø 750 and Ø 900 mm
Filter base manufactured in plastic with diameter up to 750 mm and polyester and fibreglass for larger diameters.
Owing to the larger diameter of the top manhole (400mm) for filters of diameter 1050 mm and 1200 mm,the filter interior can be more easily accessed forservicing