SuperFlo VS RPM vs Watts

Joshii

Well-known member
Jul 15, 2013
178
#1
For anyone that has the Pentair SuperFlow VS 1.5HP pump, would you do me a huge favor? Can you run your pump at various RPMs from lowest to highest and let me know what the watt use is at each setting?

That would be super-helpful for anyone looking into a VS pump! These numbers exist here for the IntelliFlo 3hp pump, but not for this one, thanks!
 

TCpoolnoob

Well-known member
Apr 27, 2015
56
Richland WA
#2
I just ordered that pump the other day. It's supposed to be here Friday and I plan to install it right away.
If you haven't got your answer by then, I'm sure I'll be testing many different settings over the weekend.
 

CJadamec

TFP Expert
Apr 29, 2016
2,194
Quaker Hill, CT
#4
500 rpm - 77 watts
750 - 108
1000 - 143
1250 - 186
1500 - 246
1750 - 336
2000 - 450
2250 - 596
2500 - 783
2750 - 1000
3000 - 1260
3450 - 1950

Your numbers may vary depending on you plumbing. I have 1.5" ridgid. PVC
 
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Joshii

Well-known member
Jul 15, 2013
178
#5
Those numbers are really close to the 3hp IntelliFlo pump from Intelliflo VS (011018) RPM / watts to GPM

RPM for RPM, I would have guessed a pump half the size would have used half the power. Hmm.

(copy-pasted from the IntelliFlo thread)
RPM WATTS
750* 100**
1000 140**
1200 160**
1400 200**
1600 290
1800 388
2000 519
2200 660
2400 845
2600 1050
2800 1280
 

CJadamec

TFP Expert
Apr 29, 2016
2,194
Quaker Hill, CT
#9
As mas and I said it has a lot to do with the plumbing. At 2500rpm my filter pressure was 25psi and that's a clean filter number. Even as low as 1500rpm I still get 5 psi on clean filter. I didn't look at the pressure at max speed because it was only up that high long enough to get a wattage number. I only have a single 3/4" return eyeball fitting in my pool there is only so much water you can squeeze thru it.

Not that the voltage will affect the numbers you get, my pump is wired 220v.
 
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Joshii

Well-known member
Jul 15, 2013
178
#10
Does it though? Flow rate will vary significantly based on plumbing. But at the same RPM, wattage will decrease with head loss not increase. BTW: thank you very much for the numbers!
 

mas985

TFP Expert
LifeTime Supporter
May 3, 2007
12,266
Pleasanton, CA
#11
Does it though? Flow rate will vary significantly based on plumbing. But at the same RPM, wattage will decrease with head loss not increase.
Didn't you just answer yes to your own question? Or were you asking a different question?
 
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Joshii

Well-known member
Jul 15, 2013
178
#12
Not really. RPM for RPM, the difference in wattage between no flow (0 gpm) and tons of flow (160gpm) in your spreadsheet is less than 2x in all cases. And the difference in wattage between the 0gpm and 50gpm case (normal flow through a residential pool) results in a 30% difference in wattage.

The difference in flow in all these cases is enormous.

So, differences in plumbing will certainly have an effect on these wattage numbers, but not a huge one. Good enough that I'd trust them to be applicable to my pool!
 
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Joshii

Well-known member
Jul 15, 2013
178
#14
Rollercoastr posted in another thread:

I run it at 2,800 RPM which pulls 1,080 watts

This is very close to what CJadamec posted above.

Rollercoastr, would you be willing to post more rpm vs watts numbers for this pump?

TCpoolnoob, have you got yours installed?

Based on the above, I'm probably going to go with this pump over the IntelliFlo. Also what's good with this pump is it can do basic automation without requiring any Pentair controller components (more $$$$)
 

mas985

TFP Expert
LifeTime Supporter
May 3, 2007
12,266
Pleasanton, CA
#15
If you want to know the wattage at any RPM on any type of plumbing, you can use the spreadsheet in my signature. You can even estimate the plumbing curve for your own plumbing to get more accurate energy use for your situation. Plus you can compare the economics between multiple VS pumps.
 

Rollercoastr

Gold Supporter
May 18, 2016
806
West Bloomfield, MI
#16
Here's my data from my SuperFlo VS today. I can't explain why it's using less power than the last time I looked... the water is warmer, but pressure is higher, as I've added DE to my sand filter...

800 107
900 120
1000 132
1100 145
1200 163
1300 182
1400 202
1500 227
1600 225
1700 291
1800 330
1900 375
2000 424
2100 478
2200 537
2300 602
2400 670
2500 750
2600 837
2700 925t
2800 1030
2900 1141
3000 1255
3100. 1418
3200 1560
3300 1689
3400 1825
 

JamesW

TFP Expert
Mar 2, 2011
13,049
#17
Warmer water is less dense and will use slightly less power at the same flow rate.

Higher pressure will slow flow rate and reduce power usage.