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What pumps are better than the Phobya DC12-400

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post #1 of 15 (permalink) Old 01-09-2019, 06:33 PM - Thread Starter
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What pumps are better than the Phobya DC12-400

I currently have the Phobya DC12-400 12Volt Pump, is there a better option?

Looking for some ideas of pumps that can give me better than 800 l/h flowrate. Any ideas?


https://www.aquatuning.us/water-cool...00-12volt-pump


Technical specifications:
Color: Black
Casing material: Plastic
Outer dimensions: (L x W x H): 75 x 66 x 54mm
Connection thread size: G1/4"
Power connector: 3-Pin
Nominal operating voltage: DC 12V
Starting voltage: DC 8V
Power consumption: 18W
Current draw: 1.8A
Max. pressure head: 4m
Flow rate: 800 l/h
Lifespan: 50.000hrs
Noise emission: below 25 db

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Last edited by porschedrifter; 01-12-2019 at 10:58 AM.
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post #2 of 15 (permalink) Old 01-10-2019, 01:25 AM
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A D5 pump gives more than 800l/h. But flowrate doesn't say everything. Headpressure is important as well since it's needed to overcome the flow restriction of the blocks.

In a low restriction loop, you will get the best flowrate with a D5. In a high restriction loop, a DDC will perform better.

I have a high restriction loop and I'm using a D5 because it's more silent than a DDC and it still performs good enough. I would only choose a D5 of DDC. They are the best pumps for watercooling PC's.

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post #3 of 15 (permalink) Old 01-10-2019, 01:33 AM
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Quote: Originally Posted by broodro0ster View Post
I would only choose a D5 of DDC. They are the best pumps for watercooling PC's.
I would also add D5 is very resilient, can last a long time, DDC is a bit more finicky and requires additional cooling (heatsinks)
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post #4 of 15 (permalink) Old 01-10-2019, 08:18 AM - Thread Starter
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Thanks for the reply. I have the phobya now it has a 4m head pressure but I'm looking for something with a better flow rate without losing the head pressure for sure. I'll look into the types you mentioned. This one is slightly audible at max speed when properly dampened, quieter would be a good thing.

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post #5 of 15 (permalink) Old 01-10-2019, 09:03 AM
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Quote: Originally Posted by porschedrifter View Post
Thanks for the reply. I have the phobya now it has a 4m head pressure but I'm looking for something with a better flow rate without losing the head pressure for sure. I'll look into the types you mentioned. This one is slightly audible at max speed when properly dampened, quieter would be a good thing.
The D5 has 4.7m of headpressure and 1500l of flow. A full speed it's audible tho. I run mine around 3500-4000rpm. Temps are only 0.5°C higher at this speed. With a good damper (Shoggy sandwhich) you can probably get it quiter, but my case is too small to add dampers.

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post #6 of 15 (permalink) Old 01-10-2019, 03:07 PM
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Quote: Originally Posted by porschedrifter View Post
Thanks for the reply. I have the phobya now it has a 4m head pressure but I'm looking for something with a better flow rate without losing the head pressure for sure. I'll look into the types you mentioned. This one is slightly audible at max speed when properly dampened, quieter would be a good thing.
I think D5s must have a bit of lottery on noise as I never hear mine and it runs flat-out 24/7. Even if I open my case and stick my ear down towards it I can't hear it. The only way I know mine is working is to touch the top of it. I have no dampening and it is screwed into a flimsy radiator/fan support. Mine is just an EK with plexi top.

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post #7 of 15 (permalink) Old 01-10-2019, 04:35 PM
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The DDC i own is also really silent (a 3.25 DDC at 4000 rpm) and on an external radiator, 1m away from my feet , and i didn't hear it at all, i have to touch it to know it spin.
The only concern for many D5 and DDC is how you mount them and how much vibration is transmitted to the case.

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post #8 of 15 (permalink) Old 01-11-2019, 06:31 AM
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Quote: Originally Posted by poisson21 View Post
The DDC i own is also really silent (a 3.25 DDC at 4000 rpm) and on an external radiator, 1m away from my feet , and i didn't hear it at all, i have to touch it to know it spin.
The only concern for many D5 and DDC is how you mount them and how much vibration is transmitted to the case.
As much as I know this will be met with the usual "yeah, but if you XYZ", I am still going to go ahead and point out that the statement is incorrect, that essentially anyone who has used a D5 and DDC will confirm that DDC are louder, and that dB doesn't even tell the whole story since the tonality of a DDC is far more invasive than that of a D5.


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post #9 of 15 (permalink) Old 01-11-2019, 07:23 AM
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One thing to think about. D5 pumps are mostly cooled by your loop, the heat generated goes in to your loop. DDC pumps are air cooled. If using DDC pumps I would suggest using a heat sink on them, EK make a nice housing. I’ve used it and it works great to keep the pump cool.

Also noise is subjective, what is noisy for me is not for you. My dual D5s I can barely hear. The pumps are isolated from the case. The dual DDC pumps I had where noticeable when sitting at my desk, across the room not really noticeable, the DDC pumps where also isolated from the case.

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Last edited by apw63; 01-11-2019 at 07:30 AM. Reason: Adding info
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post #10 of 15 (permalink) Old 01-11-2019, 07:49 AM
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Quote: Originally Posted by Rarestbreed View Post
I think D5s must have a bit of lottery on noise as I never hear mine and it runs flat-out 24/7. Even if I open my case and stick my ear down towards it I can't hear it. The only way I know mine is working is to touch the top of it. I have no dampening and it is screwed into a flimsy radiator/fan support. Mine is just an EK with plexi top.
This^. My D5 is almost silent as well, and has been running fine for the past 5 years or so.


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