JIM NELSONS HELPFUL HINTS: DIAPHRAGM CYCLE LIFE VS. MAXIMUM FLOW RATE

I often receive phone calls from end users about diaphragm cycle life and the first few questions I ask are:

1. What pump are they using?
2. What chemicals are they using and at what temperature?
3. Is it a suction lift application or a flooded suction?
4. At what flow rate are they operating the pump?

After discussing these questions I find that several customers are running the pump at full throttle instead of selecting a larger pump in the beginning process of the pump selection.
Operating a larger pump at half throttle would extend the diaphragm life, consume less air consumption and overall provide less wear and tear on the equipment.