I asked the local pump representative and our mechanics, and got told the impeller size was 8 inch.
I shut down one pump and closed the discharge and suction valves for that pump (not running), and saw that the pressure on the pressure gauge dropped down from 80 to around 65 ish. I then closed...
The atmospheric tank water level is around 8 ft positive relative to the pump.
The pressure gauge is right at the discharge nozzle of the pump, before the isolation valve. the reading fluctuates up and down a little bit, but always reads around 75-80 psi range.
no booster pumps and no control...
@LittleInch
@KoachCSR
Correction about the manual valve, it is currently positioned like this
And the two inch line is pretty long, it is a safety shower loop, and it recirculates around the whole plant, so probably around 4-500 ft minimum
Sorry, and thank you.
@KoachCSR
No VFD, they are on 24/7. Both are centrifugal pumps, I am certain that both pumps are running at the same time, both pumps were quite noisy and the the motors were both running.
The manual valve on the recirculation line is a 2'' ball valve. The 4'' discharge lines both have...
Hi all,
I am an intern working on this project, I am wondering if you can help me out with figuring out this pumping system?
Here is a sketch for the system: 2 identical pumps connected in parallel drawing from an atmospheric pressure storage tank, pumping to two discharge locations, and there...
@Artisi
Hi, sorry I didn't include these information in the post. Here are the background information.
1. The pump curve is the manufacturer pump curve, I just jotted down the points from the original graph and made a trend line in excel so I could play around with it haha
2. Both system...
Hi all,
Just got a quick question here wondering if you guys can help me out.
Right now I have the yellow pump curve and the orange 2 inch system curve , producing around 120 gpm against around 110 ft of head. If I expand the piping from 2 inch to 3 inch I end up with the grey system curve...
