The pump motors can withstand voltage fluctuations from 180-240 volts. These are fitted with thermal overload protector to prevent motor in case of high voltage drop. Double shielded ball bearing ensures no external lubrication. Impeller is of brass HTB2. These pumps can be of great use in solar heating system, industries, garages and so on. This pump with aluminium motor body is capable of operating in a wide voltage range between 180V to 240V.