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KSB Etaseco speciaalpomp voor vermogenselektronicaKSB has expanded its Etaseco RVP type series especially developed to cool power electronics of wind turbines. The zero-leakage canned motor pumps are usually employed in cooling systems, where they circulate a water/glycol mixture at a discharge pressure of up to 6 bar. They are designed for an operating pressure of 10 or 16 bar.
 
The pump sets’ dimensions and comparatively low weight have been specifically designed with small installation spaces in mind. The maximum flow rate for the 50 Hz version equals 44 cubic metres per hour; the maximum motor rating equals 3.4 kW. As an option the motor windings can be protected by a PTC thermistor. A 60 Hz version is also available. The coolant temperature can range from -50 °C to +110 °C, depending on the climatic conditions. The pump casings are either made of nodular cast iron (EN-GJS-400-18-LT), optionally with cathodic coating, or of high quality stainless steel (1.4408). Where applicable, the pump sets meet the technical specifications DIN CLC TS 50537-3 and the fire protection requirements as per EN 45545-2.
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