What products fall under the scope of Regulation 641/2009 or 547/2009?

The differentiation can be found in the definitions in the regulations themselves:

Article 2(1) of Regulation 641/2009: ‘circulator’ means an impeller pump which has the rated hydraulic output power of between 1 W and 2 500 W and is designed for use in heating systems or in secondary circuits of cooling distribution systems;

Article 2(1) of Regulation 547/2012: ‘water pump’ is the hydraulic part of a device that moves clean water by physical or mechanical action and is of one of the following designs:

— End suction own bearing (ESOB),

— End suction close coupled (ESCC),

— End suction close coupled inline (ESCCi),

— Vertical multistage (MS-V),

— Submersible multistage (MSS);

_{Disclaimer: Please note that the European Commission cannot provide a legally binding interpretation of the EU legislation, as this is the sole competence of the European Court of Justice. Any remarks from the European Commission services are without prejudice to the position the Commission might take should related cases arise in a procedure before the Court of Justice.}