How are the capacities of multiple pumps combined in a parallel operation?

In parallel operation, the capacities of multiple pumps are combined by adding their flows at the same head. When pumps are placed in parallel, they work together to deliver fluid to the system. Each pump has its own flow rate, but since they are operating under the same head conditions, the total flow delivered by the system is simply the sum of the individual flow rates of each pump. This method ensures that the system benefits from the total capacity provided by each pump without the interference of varying efficiencies or the need to average their performances.

When calculating total capacity, it's essential to focus on the flow produced as each pump contributes proportionally to the overall output based on its design and operating characteristics. This parallel configuration is particularly useful in applications where higher flow rates are necessary, while maintaining a specific head.