In-line pump
In-line pumps are centrifugal pumps, whose pump discharge and pump suction nozzles lie in a straight line of piping. It is often used in building services applications (e.g. heating and air conditioning) and is driven by means of a
- Canned motor Fig. 1 In-line pump
- IEC standardised motor Figs. 2 and 3 In-line pump

Fig. 1 In-line pump: Circulator pump with canned motor and thermal insulation
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Fig. 2 In-line pump: Twin-circulator pump with IEC frame motors
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Fig. 3 In-line pump: Circulator pump with standardised IEC frame motor