High volume eco-pump

[dho]

morning all,

€110 including P&P, (shame about the exchange rate!) definitely worth a play with. Will let you guys know when i get my hands on the pump and see how it preforms. The only problem I have is that I don't have any 3" pipe, but I need a reducer to fit onto my 2" pipe anyway so I may pick up a bit of piping then.

[John The Powermax]

I e-mailed the guy from the address Scott gave above and he's replied already! Excellent speed and the reply had attached the pump performance curves! I'm hope he won't mind me posting them here for everyone to see, it'll help his sales after all I'm sure!

[img]http://i128.photobucket.com/albums/p169/eds ... pchart.jpg[/img]

My projections of a straight line rather than 'curves' weren't far off it seems, but their straight lines start off further down from the rated performance. Looks like I might need the 20,000lph rather than the 16,000lph!

What are the wattaages on the range, I guess they won't be that eco when they go over 4m.

[B.Scott]

The power consumption remains almost constant, it's the volume pumped that changes.

B.Scott

[John The Powermax]

The power consumption remains almost constant, it's the volume pumped that changes.

B.Scott

Sorry I don't understand...

What are the wattages of the 7 pumps shown on the bar graph?

[B.Scott]

The wattage is for each individual pump. This remains about the same no matter what the load. So a pump that draws 1oo watts at 0.5 mteres of head will still draw about 100 watts at 3 meters of head but at a greatly reduced flow rate. (in theory it should actually used slightly less abut not all that much less).

B.Scott

[dho]

Hi Scott,

I think John was asking what's the wattage these pumps draw and that the pumps with over 4m head will be quite heavy on the amount of electricity they use.

I am guessing that the amount of electricity used by each pump is avaialbe on the website that you have provided earlier on in the thread somewhere.

David.

[B.Scott]

HP-12,000 liter = 75 watts + 2.2 meters head
HP-16,000 liter = 100 watts + 2.8 meters head
HP-20,000 liter = 140 watts + 3.3 meters head
HP-25,000 liter = 180 watts + 3.8 meters head
HP-30,000 liter = 250 watts + 4.5 meters head
HP-45,000 liter = 430 watts + 6.6 meters head
Hp-55,000 liter = 550 watts + 8.2 meters head

[vippymini]

a quick link back to the website, for easy reference.
http://www.aquarium.lu/index1.html" onclick="window.open(this.href);return false;

[B.Scott]

Their web site is pretty quirky Jane. You can't link directly to the page as it always redirects back to the main page. Us tha above link and select pond pumps on the left of the page. Selecting "Pipe Pumps" in the drop down menu will take you to the proper page.

B.Scott

[vippymini]

looking at the pumps in a litres per watt way they are all different. with the first two (12,000 & 16,000) being the most economical.

[B.Scott]

I did a quick calulation based on the flow rates (0 head) on the graph and got the following figures...


HP-12,000 liter = 75 watts + 2.2 meters head..... 9,000 liter @ 0 head........ 120 ltr/watt hour
HP-16,000 liter = 100 watts + 2.8 meters head...12,000 liter @ 0 head........ 120 ltr/watt/hour
HP-20,000 liter = 140 watts + 3.3 meters head...15,000 liter @ 0 head........ 107 ltr/watt hour
HP-25,000 liter = 180 watts + 3.8 meters head...18,000 liter @ 0 head........ 100 ltr/watt hour
HP-30,000 liter = 250 watts + 4.5 meters head...22,000 liter @ 0 head......... 88 ltr/watt hour
HP-45,000 liter = 430 watts + 6.6 meters head...33,000 liter @ 0 head......... 76 ltr/watt hour
Hp-55,000 liter = 550 watts + 8.2 meters head...42,000 liter @ 0 head......... 76 ltr/watt hour

Now compare that to the low head eco pumps assuming the flow rate doesn't deviate as much as it does in the Hp series of pumps

LIFETECH 28,000 liter =115 watts +1.3 meters head... 28,000 liter @ 0 head ... 243 ltr/watt hour
LIFETECH 33,000 liter =150 watts +1.3 meters head... 33,000 liter @ 0 head ... 220 ltr/watt hour
LIFETECH 38,000 liter =164 watts +1.4 meters head... 38,000 liter @ 0 head ... 231 ltr/watt hour

The 38,000 pump seems to buck the trend by being more efficient than the 33,000 but this could be due to the pipe size increase from 90mm to 110mm.

B.Scott

[eds]

According to the graph they sent me though these pumps don't actually produce the flow rates they claim! That ups the wattage per litre.

[B.Scott]

I did a quick calulation based on the flow rates (0 head) on the graph and got the following figures...

READ THE TEXT ED... I did use the data from the graph!

B.Scott

[vippymini]

so if we take the best possible rates from the other types of pumps what do we get as a comparison. that meas if we use the manufacturers figures for zero head for the lies of aquamax pumps, powermax pumps and any otheryou all think fit to go into it.
Scotty could always make up a nice little bar-chart with colours, couldn't you

[B.Scott]

Sure Jane,
I'm just sitting here scratching myself with nothing else to do on a Saturday evening!

NOT!

B.Scott