KSB’s MegaCPK: A Lean, Mean Combination

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The MegaCPK now comes with various types of impellers, casings and shaft seals and in a large number of different materials. A total of 49 different sizes are available; nine more, in fact, than for the already very multivariant CPKN. Like all KSB pumps, the MegaCPK’s impeller can be accommodated to suit user-specific and system-specific requirements by reducing its diameter until the pump output exactly matches the required level. For the user, this means that smaller pumps will now suffice to achieve the optimum operating point.

Ready for Efficiency Requirements

Indeed, the optimised hydraulic components benefit the user in many ways. The MegaCPK already fulfils future efficiency requirements and allows long-term planning of new systems — as already demonstrated in diverse industrial test series and configurations in which the new pump series took the place of the time-tested CPKN — with resounding success in terms of energy balance. In one case, appropriate downsizing and altered selection yielded a 19 percent gain in efficiency over that of the CPKN. This makes it possible to install a smaller model, hence also reducing the initial investment.

Versatility is the Key

Moreover, the large variety of materials makes the MegaCPK a particularly versatile pump for numerous applications. These pumps are available in grey cast iron, cast steel, stainless steel, duplex steel and such special alloys as titanium and Hastelloy. In addition, the pump’s enlarged seal chamber allows installation of any customary type of mechanical seal to EN 12756.

Enhanced Operating Reliability

Along with improved efficiency, the KSB developers also attached major importance to enhancing the pump’s operating reliability. In doing so, they scrutinised numerous details and modified them as necessary. In general, they applied the following principle to the MegaCPK’s development: The fewer the components and the more robust they are, the easier it will be to service them. Moreover, reducing the number of parts also simplified the task of spare parts management while still giving the user the benefits of more flexibility via optional labyrinth seals, oil level sight glass, cooling or oil/grease lubrication. The following examples briefly illustrate the principle of simplicity:

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