What defines the maximum pressure a pump can safely operate at without causing damage?

The maximum pressure a pump can safely operate at without risking damage is defined by the fatigue pressure rating. This rating is a measure of the ability of the pump's materials and construction to withstand repeated pressure cycles over time, indicating the level of stress that the pump can endure without failure. This consideration is crucial, especially in applications where the pump is subjected to varying pressure levels during its cycle of operation. Understanding the fatigue pressure rating helps ensure reliable performance and longevity of the pump, ultimately preventing catastrophic failures that could lead to costly repairs and downtime.

In contrast, the cyclic operating pressure refers to the maximum pressure experienced during specific cycles but does not account for the cumulative effects of fatigue over time. Nominal operating pressure typically defines the standard operating conditions for the pump, but it is not a safety threshold like the fatigue pressure rating. The dynamic pressure limit may address immediate operational constraints but is less relevant when assessing long-term durability and safety against fatigue-related issues.