Choosing The Best Pump for Your WaterCooling System

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04-26-2005, 01:51 AM
RaptorRaider

Quote:

Originally Posted by kontkommer

about the AquaExtreme 50Z.. are there no revisions to worry about like with the Swiftech MCP600?

AquaXtreme 50Z = MCP600 Rev.2.
04-26-2005, 02:46 AM
kontkommer

sweet thnx
04-26-2005, 07:46 AM
RaptorRaider

Quote:

Originally Posted by RaptorRaider

This is not the type of Iwaki pump that I should buy, right?
Max head seems rather low. :(

Anyone? I just noticed that MaxxxRacer says this in the topicstart:

Quote:

This pump does 6.7gallons per minute and has 14 feet of head

14 feet is about 4.2 meters. The picture says 3.1/4.3 so that isn't bad I guess.
6.7 gallons is about 25 liters. The picture says 27/31 so that isn't bad either.
It's just the standard MD-20R: normal head and normal flow.

Even if this is right and it's a good pump for WC I still don't know whether I should buy this pump; in the Netherlands we've got 220V/50Hz which will hurt the pump's performance I'm afraid. :(
04-28-2005, 12:20 AM
MaxxxRacer

You are correct. the iwaki's at 50Hz do not provide as stellar performance as they do in 60Hz.

I would suggest goign with an overvolted 50Z or two if you are afraid to overvolt. It will cost the same or less (depending if u choose one or not) and you will get very good performance. Very close to that of the Iwaki.

Companies change their specs at the drop of a hat. the specs i posted were accurate. i gues they just changed them now.
04-28-2005, 01:26 AM
pauldenton

Quote:

Originally Posted by MaxxxRacer

its acctually worse at 50hz.. the motor speed runs less but the voltage is still high.. the pumps were relaly never designed to work at 50hz but they do run so iwaki didnt make two versions of the motors and just gave different pq curvers for 50 and 60hz.

actually they were designed to work at 50hz: that is the mains frequency in Japan....
http://www.toroid.com/custom_transfo...bulletin_2.htm

the upside to the lower speed is a lower power draw... though still high.
04-28-2005, 01:29 AM
MaxxxRacer

paul i know they are designed to work at 50hz.. but they run better at 60Hz :D
04-28-2005, 01:44 AM
pauldenton

Quote:

Originally Posted by MaxxxRacer

paul i know they are designed to work at 50hz.. but they run better at 60Hz :D

yes - if only we had standardised on 110v/60hz here...(it's also a lot safer!)
04-28-2005, 03:59 AM
RaptorRaider

Quote:

Originally Posted by MaxxxRacer

I would suggest goign with an overvolted 50Z or two if you are afraid to overvolt. It will cost the same or less (depending if u choose one or not) and you will get very good performance. Very close to that of the Iwaki.

According to Cathar's calculations the difference is very small:

Quote:

+21.1C => Iwaki MD-20RZ @ 60Hz
+21.2C => Iwaki MD-20RZ @ 50Hz

I've already got a 50Z and since I can get this MD20R relatively cheap I think I'm going to buy it and do some testing of my own. :)

Overvolting is going to be hard to do since it's almost impossible to get a Meanwell PSU around here.
I might buy one next time I buy something from the USA.
04-28-2005, 07:10 AM
MaxxxRacer

you done neeed a meanwell. there are little 12v to 13.8 volt converters. they are less than 20 US dollars.

if you can get the iwaki cheap then do so. they are great.
04-28-2005, 08:10 AM
pauldenton

Quote:

Originally Posted by MaxxxRacer

you done neeed a meanwell. there are little 12v to 13.8 volt converters. they are less than 20 US dollars.

you can get 13.8V supplies quite easily too (for radios, laptops, cctv etc.) - don't forget that the current draw of the pumps is pretty low (about 1.2Amps at 13.8V...) so you don't need anything that powerful...
04-29-2005, 09:45 PM
shadowing

Quote:

Originally Posted by EnJoY

http://www.ryanhercoproducts.com/Aut...EC=640&GRP=400
http://www.oberread.com/IW_RD_Series.htm

Think anyone of these would allow us to buy from them?
04-30-2005, 10:40 AM
nikhsub1

Quote:

Originally Posted by shadowing

Think anyone of these would allow us to buy from them?

Sure they will, i've talked to them. RD-30 = $275, RD-20 = $250 RD-05H = $192.
04-30-2005, 01:00 PM
MaxxxRacer

egats.. that price still horrifys me....
04-30-2005, 02:03 PM
shadowing

Quote:

Originally Posted by nikhsub1

Sure they will, i've talked to them. RD-30 = $275, RD-20 = $250 RD-05H = $192.

Uhh.. will they allow direct buys at their distrubtion stores? I'm actually planning on getting the RD30. Wicked fun! :)
05-01-2005, 01:29 PM
RaptorRaider

Thanks about the info about 13.8V; I'll search harder when I have time again.

Quote:

Originally Posted by nikhsub1

Sure they will, i've talked to them. RD-30 = $275, RD-20 = $250 RD-05H = $192.

Ouch... I'm never going to be able to spend that much on a pump for ~0.2C.
You got them for $100, right? Nice...

Quote:

Originally Posted by MaxxxRacer

if you can get the iwaki cheap then do so. they are great.

Edit:
Thanks for the warining; I think he already shipped it when I posted this anyway.
05-06-2005, 03:04 PM
MaxxxRacer

that link looks good. but be advised that you shouldnt post ebay links on XS becuase ppl will poach them.

It isnt the high head version but either way u will get very good flow with it.
05-07-2005, 09:05 PM
shadowing

nikhsub1, what inverter do you use for your RD30? Can you give me a link?
05-07-2005, 09:18 PM
MaxxxRacer

he uses the 100watt meanwell afaik. not sure if its DC-DC or AC-DC though.
05-08-2005, 01:07 AM
ADM

Quote:

Originally Posted by MaxxxRacer

he uses the 100watt meanwell afaik. not sure if its DC-DC or AC-DC though.

My mate had ordered a similar one, according to him it uses AC.
05-08-2005, 11:40 AM
MaxxxRacer

well there are meanwells that use 12vDC input and ones that use 120v AC input.
05-08-2005, 12:17 PM
nikhsub1

Quote:

Originally Posted by shadowing

nikhsub1, what inverter do you use for your RD30? Can you give me a link?

I use this one: http://meanwellusa.com/cat_pdfs/c_s-240.pdf it is AC-DC but you could use a lower rated one... like this: http://meanwellusa.com/cat_pdfs/c_s-150.pdf
05-08-2005, 08:21 PM
EnJoY

Whats the pricing on either of those?
05-09-2005, 07:32 AM
nikhsub1

Quote:

Originally Posted by EnJoY

Whats the pricing on either of those?

The 6.5A (150W) is $69.95: http://jameco.com/webapp/wcs/stores/...oductId=123449

and the one I've got is $109: http://jameco.com/webapp/wcs/stores/...oductId=137656

Weird, I think the pricing went up on these? I remember paying ~ $89 for mine from here, but alas, maybe I'm getting too old to remember correctly lol.
05-09-2005, 02:25 PM
nikhsub1

2 Attachment(s)

shadowing, here is how it is wired, don't mind that they are 2 different cases.
05-12-2005, 02:51 AM
kontkommer

i just received my aquastealth 50z from cooltechnica..

i went to a lot of trouble finding a retailer for this pump because i read everywhere it was better than the d4 (mcp650)..

but while this pump was flying from the states to europe the new mcp655 was introduced.. how does the 50z compare to the mcp655?

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