Single body consisting of a cast iron hydraulic unit. Die-cast aluminium motor casing. Technopolymer impeller. Tempered stainless steel driving shaft mounted on graphite brushings lubricated by the pumped liquid itself. Stainless steel protective rotor sleeve, stator sleeve and closing flange. Ceramic thrust bearing, E.P.D.M. O-rings and brass air outlet cap. The two-pole asynchronous motor with wet rotor is self-protected for resistance.
No overload protection required. Three-speed operation.
In the twin version an automatic clapet type valve is provided.
Operating range: from 0.5 to 4 m3/h with head up to 6.3 metres.
Liquid temperature range: from -10°C to +110°C.
Pumped liquid characteristics: clean, free from solids and mineral oils, non viscous, chemically neutral, close to the characteristics of water (max 30% glycol).
Maximum working pressure:10 bar (1000 kPa).
Protection level: corresponding to IP 44
Insulation class: F
Cable grommet: PG 11
Installation: with motor axis horizontal.