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Diaphragm pump for circulating the water circuit as part of a solar thermal system; The advantages of the pump:- self-priming- very quiet- low power consumption- low mass- small housing- low vibrationbuilt into magnetic housingTechnical data:Operating voltage: 2 ... 12 V DCmax. current consumption: 20 ... 150 mAFree flow rate: 150 ml/minmax. pressure: 6.0 m (water)max. suction height: - 3.0 m (water)2 hose connections Da= 4.8 mmDimensions: 84x84x52 mmMass: approx. 165 g