The heavy-duty dewatering pumps for sand and slurry, previously known as KRS2, have been extensively upgraded and are now known as KRD. The Japanese pump company says this makes it easier to differentiate between the different series and sets new standards in terms of performance and reliability.
The KRD pumps feature a number of improvements that make them even more powerful and robust, for example when used with sludge and bentonite. One of the most significant changes concerns the insulation class of the motors, which has been raised from B/E to F. The motors can now withstand temperatures of up to 155°C, improving heat protection and extending the life of the pumps.
The housing material has also been optimized. The previous cast material FC150 (with a Brinell hardness of 212) has been replaced by FC200, which has a higher Brinell hardness of 223. This upgrade makes the pumps even more resistant to mechanical stress and ensures a longer service life, even in tough operating conditions.
The dimensions have changed slightly as a result of technical progress. The models in the series can achieve up to 4300 l/min or heads of up to 31 m thanks to motor outputs of up to 18 kW.
