Thanks for the response.
We are looking at variable speed pumping because we would like to simulate gravity flow, since there are sensitive downstream hydraulic issues that would make flow surges associated with constant speed pumping unattractive. I knew that liquid rheostats were becoming...
For a variable speed pumping application, what are the main advantages of variable frequency drive (VFD) over liquid rheostat controls? Are there any advantages of liquid rheostats over VFDs?
Any help would be much appreciated. Thanks.
For a variable speed pumping application, what are the main advantages of variable frequency drive (VFD) pumping over liquid rheostats? Are there any advantages of liquid rheostats over VFDs?
Any help would be much appreciated. Thanks.