What might happen if a diaphragm pump is allowed to run dry?

When a diaphragm pump is allowed to run dry, it can cause significant damage to the pump and lead to operational failure. In this situation, the absence of liquid means that the pumping mechanism is not appropriately lubricated or cooled, which could result in excessive wear and tear on the internal components. Moreover, the diaphragm itself may become overheated and can even rupture, leading to a complete failure of the pump.

The design of diaphragm pumps generally relies on the continuous movement of the fluid to assist in maintaining performance and preventing damage. Running dry negates this function, creating a scenario where mechanical components can seize or become damaged due to friction and heat buildup.

Consequently, the consequence of a diaphragm pump running dry is often that it will stop functioning altogether, necessitating repairs or replacement. This underscores the importance of ensuring that diaphragm pumps always have a sufficient supply of fluid to operate correctly and efficiently.