The pump is suitable for civil and industrial uses to pump clean water and chemically non-aggressive liquid. They have a compact size and are extremely reliable, very simple to use and almost maintenance-free Pump body Cast iron Impeller Brass (noryl, Aluminum if required) Motor Closed, externally ventilated Insulation class B(Class F if required) Protection class IP44 or IP54 Duty Continuously rated Mechanical seal ?12, ?14, ?16 ceramic steatite/metalized carbon The normal power standard is 220V 50Hz single phase. Three phase 220/380V/50Hz, 220/440V/60Hz, Single Phase 230V,240V, 127V,110V,115V/60Hz models are available on request.