Eheim 1262 -- correct gph from Eheim

[crabsy]

After seeing variations in flow on different sites I e-mailed Eheim and asked what the flow would be at 6' and 7' of head pressure.
Here's it is from the horses mouth guys.

At 6' feet 635gph, at 7' 235gph!!!

So be sure of your head pressure. BIG difference.

[Goodwood]

I dont have the stats but my 1260 pushed WAY more than my Mag

[johns]

That information would be at serious odds to the info shown on the graphs on this page:

http://www.marinedepot.com/aquarium_....asp#1260_1262

[OO7]

Originally posted by johns
That information would be at serious odds to the info shown on the graphs on this page:

http://www.marinedepot.com/aquarium_....asp#1260_1262

I'm quite certain thats the point of the OP . . . .

[johns]

I'm quite certain thats the point of the OP . . . .

Really?
I guess my point is that in both cases the information claims to come from Eheim (I know my post is a MD web page, but those are Eheims graphs). So I'm still confused over which Eheim info is correct.

[Fliger]

I wonder if it has to do with the 50/60 hz thing. Pumps designed to run on Euro standards draw more water/air in the US. The 1262 Eheims on H&S and Deltec skimmers pull ~650LPH of air in Europe and the same pump will pull ~950LPH here in the US. I've always suspected that was the case with their non NW also since I also replaced a Mag 9 with a 1262 a few years back and it was WAAAAY more GPH. I doubt Eheim downwardly adjusts their pumps for the US hz standards.

I wonder if there is a US Master Dist to ask?

edit - I believe the reason is our higher hz causes the impeller to spin much faster.

[Zoos]

After reading this I'm sure will contact Eheim and ask them.

[Zoos]

After reading this I'm sure someone** will contact Eheim and ask them.

[hahnmeister]

I would be interested in knowing what their comparative numbers for a 1260 would be in comparison to the 1262... after all, they are the same pump except the 1260 has a smaller intake... so with a little bit of back pressure, they should perform the same at say... 6'.

[Zoos]

Originally posted by hahnmeister
I would be interested in knowing what their comparative numbers for a 1260 would be in comparison to the 1262... after all, they are the same pump except the 1260 has a smaller intake... so with a little bit of back pressure, they should perform the same at say... 6'.

are they really the same exact pump?

[crabsy]

Hi all,

The info I got came from Ernesto Cedeno at Eheim N. America website. The Marinedepot flow chart is at odds with the graph on the Eheim box, so I went rifgt to Eheim. That's what Mr. Cedeno ar Eheim Technical Support said.

[hahnmeister]

Originally posted by Zoos
are they really the same exact pump?

Yep... same speed, same everything. If you order the intake from a 1262 and put it on your 1260... its a 1262. Same speed, same impeller, etc.

[Zoos]

Cool, btw your avatar give me the creeps, i'm kind of missing the pimpilator 3000 lmao

[A sea K]

Very interesting,
I am condsidering switching my Mag1800 out to 2 Ehiem 1262's to handle the return chore on my 210. My vertical lift would be 4'8'' thru about 6' of 3/4" pipe for each ehiem and the same lift but double the piping for the current mag.
So depending on how much the plumbing effects the head I'll have either a little more flow(desired) or a lot less flow(not an option I'm looking for). Not much difference in power usage, but I wonder how the 2 ehiems would do heat wise compared to the single mag?

[hahnmeister]

For that much height, I wouldnt bother with an Eheim A sea K. Eheims are not great head-pressure performers... compared to say... a PAN WORLD external. Thats what I would use... a 50PX-X or something along those lines.

[A sea K]

Well in the early design stages I figured the Mag would be fine, so I focused on sump space, with everything being under the tank I have no room for a external pump.
I am trying to gain a little flow and lose some pump heat. Dont think it is quite worth the investment, It seems I might not get what Im looking for in either area or at least not enough to justify the cost.
I shall continue to research pump options but will probably remain where Im at. But thanks for the tip, Chris

[Fliger]

It also depends on how much water you want running to the sump. My ~132G uses a 1260 and its enough flow for me. I am at ~4.5' of head pressure and I'm sure the GPH is at least 750 (just and educated guess). I believe my new tank which is between 180-190G will also use a 1260 as a return. I will have approximately 5' of head pressure so I'm hoping for 700GPH. All my return lines are thru silicone tubing so I don't have any 90's or 45's.

I'm not a huge believer in mega sump flow, just enough to reach the mech/chem/bio filtration down there. I've always thought two smaller return pumps would be a good way to go, in case one fails you still have flow. I'm not a huge fan of Mag pumps, loud and hot IME.

[A sea K]

If the 1260 and 1262 are the same pump, I could always restrict the flow if needed but I still wonder if I would lose or gain heat. The single mag and the dual 1260/62 are close in wattage use. The 1260/62 are reported as more efficient and cooler pumps but I have no first hand experience with the Ehiems.