What is the typical purpose of arranging pumps in parallel?

Arranging pumps in parallel primarily serves to increase the flow capacity of the system. When multiple pumps are operated together, they can collectively move a greater volume of water than a single pump could on its own. This configuration allows for adjustments in flow rates based on the demands of the system, providing flexibility to accommodate varying water distribution needs.

Additionally, operating pumps in parallel can also provide redundancy; if one pump fails, the others can continue to operate, ensuring a consistent flow to the distribution system. This setup is particularly beneficial in applications where higher flow rates are required, such as in irrigation systems, fire protection systems, or in municipal water supply systems during peak demand times.

While energy consumption can be optimized through pump selection and operation strategies, the main function of parallel arrangements is to enhance total flow without necessarily impacting the pressure unless pump characteristics are modified to do so. Therefore, increasing flow is the fundamental purpose of arranging pumps in parallel.