APPLICATION

Submersible electric pumps for drainage are used prevalently to pump clear water or lightly dirty one. They are particularly employed to empty rain water and stratum water containing mud, sand and abrasive particles (as for example in building sites, tanks, ponds).

CONSTRUCTION DATA

Submersible electric pumps, robust in construction; watertight electric motors accommodated in compartments, connected by shafts of reduced lengths  to the impellers which are placed between the hydraulic side and the electric motor by the interposition of an oil chamber. Asynchronous, three-phase electric motors, squirrel cage type, IP 68 protection,  class H insulation. They are designed for the continuous service S1 , with a maximum overloading up to 10 % and environmental cooling at <40ºC . Starts par hour up to 15. Motors cooling comes through thermic exchange with the surrounding fluid.

MATERIALS

Principal fusions in Cast iron EN-GJL-250, Spheroidal impeller in Cast-iron GS400, Electric cable in Neoprene H07RN/F, Shaft in Stainless Steel AISI 420B, O-rings and lip seal in Nitrile, Bolts A2 class - AISI 304, Mechanical seal in Silicon Carbide / Silicon Carbide.