Air-Operated Diaphragm Pump, 35 GPM Capability, 1 Inch NPT Ports,

One of the key features on this pump is the patented "Unbalanced" air valve design, which is specifically built to make sure the pump always resumes pumping action when called upon. Stalling mid-cycle is exactly the kind of problem that feature addresses. So if your current unit is getting hung up and not restarting on its own, this would be a meaningful upgrade in that regard.

This air-operated diaphragm pump is rated for a maximum operating pressure of 120 PSI, making it suitable for a range of industrial applications.