What can lead to decreased pump efficiency?

Decreased pump efficiency can indeed be linked to higher fluid temperatures. When the temperature of the fluid being pumped increases, it often leads to a reduction in density and an increase in vapor pressure. This can cause a number of inefficiencies within the pump, including cavitation, which occurs when vapor bubbles form and collapse in the pump, creating shock waves that can damage components and lead to lower performance. Additionally, higher temperatures can affect the viscosity of the fluid, causing it to thin out, which may impact the pump's ability to move the fluid effectively and maintain its designed performance. Thus, managing fluid temperature is crucial for maximizing pump efficiency and ensuring reliable operation.