Koolance PMP-500 Pump

Posted: December 13, 2012 in Pumps
Tags: , , , , ,

Size Comparison

Initially I had thought this was some sort of modified PMP-450 (D5) and without the two pumps next to each other, the scale doesn’t come out.  I had assumed the pump was at least as big as the PMP-450 (D5), however I was wrong.  Here it is sitting next to it’s bigger but lower numbered brother the PMP-450.  The PMP-500 is a fair amount smaller than the PMP-450 as you can see here.




Here is a line up with a PMP-400 with aftermarket top to get two pump comparisons.  They are all roughly the same length, but the PMP-500 is more compact than the PMP-450 and larger than the PMP-400 with top. The pump is a really good size, not the smallest out there, but overall a very impressive compact size for it’s performance specifications and it looks more professionally built than the PMP-450 as well not to mention it’s G1/4 tapped so your favorite fittings of choice will install no problem.

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  1. Kevin Hua says:

    Finally, a pump that has dethroned the ddc series in all aspects! Nice testing Martin, I’ll be sure to pick up this pump! Maybe a custom pcb can lower power draw/noise… It’s using the old style transistors for power.

    • Martinm210 says:

      Yeah, if noise can be reduced via PCB and motor controller upgrades to say less than 40dbA max and a comfortable like tone that blends/hides well in your typical fan noise, that would be sweet. Add PWM to that and you would have one hard to beat little pump..:)

  2. nleksan says:

    So glad to have you back!!!!!!!!!!

    You are truly a pillar of the water cooling community, and if it weren’t for yourself and the few like you who have been so incredibly dedicated to scientifically analyzing and reviewing anything and everything water cooling, it’s quite likely that the hobby would still consist of a lot of non-modified aquarium pumps, semi-custom “water blocks”, and heater cores! I realize that you are a humble man, but take a moment to recognize the immense contribution you have made to “PC Water Cooling” as a whole, and if you’re ever nearby I’ll buy you a beer, hell, I’ll buy you a keg!

    • Martinm210 says:

      🙂 … Thanks!! and Cheers!!

      • Cole Markusen says:

        Not a problem. Might have to step up and buy one of Koolances controllers. The tone/pitch is almost unbearably annoying after long periods of time. Obviously the controller won’t get rid of it but lessen the severity a bit. Any idea what kind of components those controllers use? Would hate to have the same noise issue as the fan controller.

  3. Hi Martin,

    I lost my rubber washer (https://martinsliquidlab.files.wordpress.com/2012/12/koolancepmp500-16.jpg)

    I would like to know if my pump will get flooded or I can run the pump without.

    Thank you,

  4. Hi Martin, I just had a failure on my power supply just 20 minutes after starting my system with a PMP-500, an ATI 7870 and a FX-8350 oced to 4,6ghz, my power supply was a corsair GS700 with a single 12v rail of 56A, can you tell me what power supply should I buy to move all this without problem? Thank you!

    • Martinm210 says:

      I have had good luck with my TX650 and a single 570gtx card and hot hexacore, but I’m not up to speed on what the latest cards are drawing. I would plug it all into one of the online power calculators and base it on that. I would also check reviews on newegg on any model you are looking at and watch for how many bad reviews there are.