Are there problems with operating near the "minimum required flow for safe pump operation"? I assume that below this level you start getting into the dead-head regime. Is there also lesser risk with operating near the minimum, but above?
We are debating whether or not to add a small size pump...
We want to measure water flow through a 2" pipe. The volumetric flow will be used as feedback for the multi-pump control scheme.
It's a high pressure system (~600 psi) and the water is probably moving around 10 m/s.
I was recommended to use Fuji Ultrasonic flow meters. Does this sound like...
One of my projects is replacing a high pressure water system used to supply sanitation hoses. It consists of high pressure pumps (which put out water at ~600 psi), a water heater, and a control system to maintain the temperature and pressure.
I've talked to "experts" who have argued both...
I'm working on a project where we are replacing a pumping system. The walls of the room are made of painted concrete masonry unit. The paint has not protected well against water, however, and water leaks through to the other side of the wall. It has been like this for years.
Luckily my...
I haven't yet gotten cost quotes, but what does everyone think about rebuilding a pump instead of purchasing a new one? Can we expect like new performance and reliability out of it? We'd be going to a professional pump rebuilder.
I don't know what the condition of our current pumps is, just...
We have a pump with spec'd at 60 gpm and 3000 hd-ft.
I measured the flowrate out of the high pressure nozzles on the hoses and found it to range between 6.5 and 7 gpm. I assume the difference is due to frictional losses based on location.
How do I calculate the change in flowrate if I were...
I'm replacing an old high pressure water pumping system. The current system uses two identical pumps (one main and one backup). The current pump specs:
Capacity (GPM): 60
Head (ft): 2370
Speed (RPM): 4380
Power: 40 HP
P.F.: 36%
Load eff: 92%
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Is that...
