Considerations for pump selection include the following points: First, clarify the type and purpose of the pump, such as centrifugal pumps, submersible pumps, etc., to ensure they meet application requirements; second, determine the flow rate and head to ensure the pump can operate efficiently within the specified range; third, pay attention to the performance parameters of the pump, such as speed, power, etc., to match system requirements; in addition, consider the properties of the medium, such as corrosiveness, solid content, etc., to select suitable materials and structures; consider reliability and efficiency, choose well-known brands and quality products to ensure long-term stable operation and energy-saving effects. In summary, reasonable pump selection can improve system efficiency, reduce costs, and extend service life. When selecting, be sure to comprehensively consider the above factors.