Which component in a diaphragm pump is known to cause significant maintenance issues?

In a diaphragm pump, the component that is known to cause significant maintenance issues is the check valves. Check valves are critical for ensuring that the flow of fluid is directed correctly and that backflow does not occur. However, they can be prone to wear and fouling due to particles in the fluid or corrosion depending on the type of fluid being pumped. If check valves become damaged or clogged, they can lead to inefficiencies in pump operation, leaks, or even complete pump failure. Regular inspection and maintenance of check valves are essential to ensure the reliability and effectiveness of the diaphragm pump system.

The diaphragm itself, while it can also require maintenance, is often more resilient and can last longer under proper conditions compared to check valves, which face more direct stress during the pumping cycle.