Flanged circulation pumps (with a linear arrangement of nozzles) are intended for use in heating systems of a closed or open type with forced circulation of the heat carrier.
Unlike glandless pumps, these pumps do not have liquid in contact with the motor. Circulation pumps have suction and discharge nozzles on the same axis and have the same nominal bore. Circulation pumps are equipped with standard air-cooled asynchronous electric motors.
