Description

USES : Single impeller centrifugal pumps, extremely silent suitable for household, civil and industrial applications, with a very flat curve to guarantee constant pressure even when the delivery. CONSTRUCTION FEATURES : Cast iron pump casing with threaded openings; cast iron motor bracket and aluminium on models CM*5 and CM**0.; impeller in Noryl or in brass (models CM*0, CM*5 and CM**0). Brass rotor on models CM **0 ***0; ceramic - graphite mechanical seal; motor shaft in AISI **6 steel for CM ********0, i ; ball bearings;liquid temperature range 0 - *0 °C (0 - *0 °C if Rotor in Noryl® or aluminium support) ; max. operating pressure 6 bar for models CM*0, CM*5, CM**0, 8 bar for larger models). MOTOR: 2 pole electric induction motor for continuous operations; stator made with low-loss laminated electric sheet steel; insulation Class F; IP *4 protection level; thermal protection for single-phase models; the user is responsible for supplying protection for the three-phase models. ON REQUEST : Other operating voltages and frequencies; special mechanical seal; special liquids.