KRL045DLS1920NNN3C3BRA6NPLBNNNNNN high pressure pump
KRL045DLS1920NNN3C3BRA6NPLBNNNNNN high pressure pump

- Product Details
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When selecting a hydraulic pump for your system, you may find yourself faced with the decision between fixed and variable displacement pumps, particularly when considering Sauer Danfoss products. Both options have unique advantages and applications, and choosing the right one can dramatically affect the performance and efficiency of your hydraulic system. Here are some factors to consider when making your choice:
KR-L-045D-LS-19-20-NN-N-3-C3BR-A6N-PLB-NNN-NNN
KRL045DLS1920NNN3C3BRA6NPLBNNNNNN
Understanding the Basics
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Fixed displacement pumps provide a constant volume of fluid with each rotation of the motor. This means that the flow rate is directly tied to the speed of the pump. Consequently, these pumps are typically simpler and more cost-effective to implement but can lead to inefficiencies in variable flow applications.
On the other hand, variable displacement pumps can adjust their output flow based on the system’s requirements. This adaptability makes them ideal for applications where the load may change frequently, providing improved efficiency and energy savings.
Application Requirements
Your first step should be to assess the specific requirements of your application. Fixed displacement pumps work well in systems where a consistent flow is needed and where load conditions do not vary significantly. Examples of such applications include simple hydraulic circuits and certain manufacturing processes.
Variable displacement pumps are better suited for applications that experience fluctuating demands, such as mobile machinery, variable load equipment, or systems that require precise control over flow and pressure. If your project involves functions like lifting or moving loads where the demand might change rapidly, a variable displacement option is more appropriate.
Efficiency and Energy Considerations
One of the significant advantages of variable displacement pumps is their efficiency. They can adjust their flow and pressure in response to the system’s needs, reducing energy consumption. This feature can lead to lower operational costs, especially in systems that run for extended periods. If energy efficiency is a critical factor for your operations, you might lean towards variable displacement pumps.

