Can a pump be adjusted between 0 et 50 HZ ?
asked 27 March 2015 asked by lapinagile (480 points)
No, the range of adjustment for a pump lies on average between 30 Hz and 50 Hz. Below 30 Hz, cavitation occurs. The pump manufacturer can give you the pump curve based on frequency. Be careful, pump performance will decline with the frequency.
Do not go below 35 HZ, at which point the pump is often off-curve.