Grundfos
Grundfos CRXL Pumps
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The new generation of Grundfos CR pumps is engineered for optimal energy efficiency and superior performance. This includes simulation-driven development of advanced hydraulics, profiling the leading edges of vanes, and introducing a flow-guiding system to eliminate eddies and turbulence. The result is a pump range that surpasses its already exceptional predecessors, setting a new standard in world-class energy efficiency.
Features:
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New Thrust Handling Device
- The Thrust Handling Device (THD) utilizes discharge pressure to balance the axial thrust load, enabling the use of standard motors. For applications below 100 HP, the axial thrust load is absorbed by reinforced motor bearings.
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Flanges
- A wide selection of flanges ensures that the CR pump can be mounted in any type of pipework worldwide.
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Pump Base
- The optimized inlet design minimizes pressure loss, significantly lowering the NPSHr requirements and enabling more compact system designs. Similarly, the outlet port has been enhanced to improve hydraulic efficiency and overall pump performance.
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Chamber
- The profiled leading edges of the guide vanes reduce turbulence, preventing energy loss in the pumped liquid.
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Seal Rings
- New seal rings reduce pump recirculation, thereby improving overall efficiency.
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Impeller
- The impeller has been optimized for maximum efficiency through extensive simulation-driven design.
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New Shaft Seal
- All large CR pumps now utilize the field-proven Grundfos cartridge shaft seal, renowned for its durability and ease of replacement.
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Top Cover
- The new cupped top cover minimizes recirculation by directing liquid away from the center of the chamber stack.