What does a flex coupling do in a centrifugal pump?

A flex coupling is a critical component in a centrifugal pump that connects two shafts together. This allows for the transmission of rotational energy from one shaft to another, which is essential for the operation of the pump. By providing this connection, the flex coupling accommodates misalignment between the shafts, which can be due to thermal expansion, vibration, and other factors that might affect the setup. This flexibility helps to reduce stress on both the pump and the motor, contributing to a longer lifespan for the equipment.

While other components in a pump system might seal packings or improve efficiency, the primary role of a flex coupling is specifically to connect two shafts. Its function is integral to managing how power is transmitted within the system, ensuring that the pump operates smoothly and effectively.