AlphaCool (13901) Water Block

This DC pump is an electronical commuted ball engine pump with running periods of notedly more than 50.000 hours at 12 volt. The only moving part of a ball enginge pump is a spherical formed rotor-/ running wheel unit which bases itself on an ultra hard wear-resistant ceramic bearing ball. A conventional shaft with shaft bearings and shaft seals does not exist. The spherical bedding of the rotor-/ running wheel unit on the ceramic bearing ball offers many advantages: neither bearing clearance nor increase of noise is possible - due to this principle. So the pump stays at a low noise level during the whole running period. The bearing is self-adjusting and is lubricated directly from the pumping medium (wet running pump). This makes maintenances unnecessary. Minimize