With its transformer oil pump type Renzmann-PR 200, Kelvion offers a unique combination: it combines long-life, maintenance-free sleeve bearings with a lightweight cast-aluminium case. Until now, investors were forced to choose for the one or the other, and both together were not possible.
As a result, the pump combines benefits such as low weight, a temperature application range down to -40°C, and maintenance-free sleeve bearings that have proved their long service life for decades in other pumps.
This propeller pump is designed to support the circulation of insulating oil for radiator cooling: for example, when natural convection does not suffice during startup, or if high ambient temperatures make more intensive cooling necessary. Owing to the large cross-section of the propeller pump, the natural flow is not impeded, even when the pump is not in operation: with the result that a bypass is not necessary.