Bud8Fan;876028; said:Good to see this topic finally put to bed. Where is Dr. Joe.
where is dr joe ????????????
slowing down a mag drive 2400...if possible
- Thread starter wright4lfe
- Start date
where is dr joe ????????????
John did the research, we will let him post the Summation thread.
Had I not previously worked at the chemical plant I would have also thought it would work harder when throttled. But once you grab the concept of how the centrifugal pump actually works it makes sense.
Had I not previously worked at the chemical plant I would have also thought it would work harder when throttled. But once you grab the concept of how the centrifugal pump actually works it makes sense.
Bud8Fan;876312; said:
q: can you choke down the output of a centrifugal pump to control flow
a: yes....choking the flow reduces the current draw and hence the amount of energy used.
q: wont the pump motor overheat ??
a: no, it will actually run cooler
repair;875898; said:
I have melted several pumps before
but you didn't hear it from me. I have a laser thermometer somewhere so I'll get be able to get inside and outside temps. I won't be able to do it until after Tuesday. I already have some victims chosen for the melt down 
CHOMPERS;876579; said:I have melted several pumps before
Speaking of melt downs, I nearly killed off my salt water setup years ago by choking down a Little Giant. The water heated up and killed most of my fish (I was left with only one). I'll take temp readings of wide open and choked in a small closed system tank.
CHOMPERS;876601; said:
i agree heating the motor is different than the water heating up......i was careful what i wrote
Right, if the "pump" is dependent on water for cooling then you do not want to throttle it back too far. You would have to do some experimenting with your output "water" temps to determine just how far that type of pump could be throttled.
