WQ,WQD series submersible sewage pumps are widely used in agriculture, architecture, mine, environment protection and industry, such as drainage slurry, waste water, which contained short fibre, wastepaper, sand and so on. It is also an ideal equIPment for irrigation. Pump body Cast Iron Impeller Cast Iron/Brass Motor Closed,externally ventilated Insulation class B and F Mechanica seal Stainless steel/Carbon-ceramic Shaft 45#Steel/Stainless steel Thermal protector(if required) 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 if request.