The new transformer oil pump from Kelvion for the first time combines maintenance-free sleeve bearings with a lightweight aluminum case
24. May 2017 With its transformer oil pump of type Renzmann-PR 200, Kelvion offers an internationally unique combination: it combines long-life, maintenance-free sleeve bearings with a lightweight cast-aluminum 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.
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