Tsurumi launch improved KRD series
Upgraded and renamed dewatering pump sets new standards in terms of performance and reliability
TSURUMI, one of the major manufacturers of dewatering and sewage pumps, are replacing one of their best-selling series due to a significant increase in performance: The heavy-duty dewatering pumps for sand and slurry, previously known as KRS2, have been extensively upgraded and are now known as KRD. Tsurumi say this makes it easier to differentiate between the different series and sets new standards in terms of performance and reliability.
The pumps feature a number of improvements that make them even more powerful and robust, such as when used with sludge. 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 The previous FC150 cast material (with a Brinell hardness of 212) has been replaced by FC200, which has a higher Brinell hardness of 223.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 – including pumping water with hard rock fragments up to 30mm in diameter.
Pointing out that the pump dimensions have changed slightly as a result of technical progress, Tsurumi say the models in the series can achieve up to 4,300 litres/min or heads of up to 31m thanks to motor outputs of up to 18kW.
