any good 12v pumps

chewyboy · 03-06-2003, 10:29 PM

does such a beast exist?

koslov · 03-06-2003, 10:40 PM

http://www.procooling.com/cgi-bin/links/jump.cgi?ID=35

nexxo · 03-10-2003, 03:07 PM

You want a capable 12V pump? You got it. Johnson CM30P7-1 is your babe. Small, powerful (414 GPH @ 3ft head) economical (12V @ 2.2 A, 26W) and solid Swedish (think Volvo) engineering. It's magnetic drive (silent, not even the 50-60Hz mains buzz) and continuously rated so you can run it anytime, all the time. It was meant to pump coolant around boat engines or car turbo boosters, so made powerful, reliable and for a rugged environment. It is the car modders pump of choice.

Also search this forum for: the Jabsco pump, its smaller brother.

The drawback of these is the relatively high price. The housing gets warm under normal operation --about 53C, so you have to keep that in mind when installing it. However people have put it inside a case with no adverse effects on case temps.

Skulemate · 03-10-2003, 04:49 PM

Iwaki-Walchem is now making their range of WMD pumps with a 12V motor as an option. I bet they'd cost some serious cash though.

nexxo · 03-11-2003, 01:31 PM

You're not kidding! The Johnson cost me £130,-- ($179,--). Still, it is an awesomely engineered pump and tiny! 18 cm long by 6 cm at its widest point. The Jabsco is cheaper, and even smaller, but still has good performance. It has been used in :this project at ReviewNation.com. Check out the temps.

Gerwin · 03-11-2003, 04:00 PM

Innovatek is about to introduce a 12V Eheim.

nexxo · 03-12-2003, 02:06 PM

That's excellent! Hopefully the price will be reasonable also.

Since87 · 03-12-2003, 03:22 PM

This oc-forums thread discusses what may be a good DC pump.

Pricy though.

Gerwin · 03-12-2003, 03:44 PM

Quote:

Originally posted by nexxo
That's excellent! Hopefully the price will be reasonable also.

Around 80 Euro

Voodoo Rufus · 05-01-2003, 01:53 PM

Where can you buy that Johnson pump in the US? Looks nice.

nexxo · 05-05-2003, 02:16 PM

I got mine from through internet shopping from Denmark (Claus V. Hansen's Eftf.) but you could also try NonStopYacht.

They're not cheap, but built like tanks. Mine's mounted like this:

to fit in my Lian-Li PC-12 like this:

Maximilium · 11-15-2003, 01:49 AM

http://store.hamiltonmarine.com/browse.cfm/4,6387.html

I order this pump today, i hope is worth the money

yoshana · 11-15-2003, 02:17 AM

Johnson-there was a huge thread about those.. Leaks leaks leaks
or something to that order.. Ben recommended them and if I remember right lots of people had problems.. might have just been that model tho....

Swiftech makes a 12v.. and the advantage is it is only 9w and it has a closed impeller very similar to the Iwaki's.... and its only 79.00

http://www.swiftnets.com/products/mcp600.asp

Here is pHaestus' test results for several pumps....and the winner is the Swifty...

http://forums.procooling.com/vbb/sho...ow+AND+measure

dima y · 11-15-2003, 02:44 AM

http://www.johnsonmarinepumps.com/sp...ges/cm30p7.htm

called these guys before they are from Seattle WA or something like that, $156 or so as i recall from calling them

Maximilium · 11-15-2003, 11:27 AM

http://forum.oc-forums.com/vb/showth...hreadid=240773

I am building my first water-cool rig, the MCP600 was actualy my first choice, but there are some problems with this pump, and at some stores they are "on hold", I know the CM30P7-1 is expencive, i hope is money well spend cuz i just order 1 yesterday

And about the Johnson pump leak, the ones with the problems aparently are the C030P5-1 ( the cheap vercion cost around $30), i have one of those, i tested, no leak so far but it makes more noise compared to my cpu fan!

, it will become the "back up pump"

bigben2k · 11-16-2003, 09:38 AM

A little bit of WD-40 strategically sprayed inside takes care of most of the noise.

decodeddiesel · 11-17-2003, 12:06 PM

Quote:

Originally posted by Skulemate
Iwaki-Walchem is now making their range of WMD pumps with a 12V motor as an option. I bet they'd cost some serious cash though.

Interesting, do you have anymore information on this Skulemate?

Skulemate · 11-17-2003, 12:56 PM

No, I don't beyond what I read in their press release. They have a line of 24VDC pumps (the RD series), and there's plenty of info on them, but there's not as much on the DC option for their WMD/MD series. It is mentioned in the FAQ though... perhaps contacting them directly is the best course of action. I've found them to be very helpful (and even a little curious about what I'd need their pump for) in my dealings with them.

brucoman · 11-17-2003, 12:59 PM

Pete is THE Iwaki in-house support guy if you ever have any issues with Iwaki pumps. The guy is great!

decodeddiesel · 11-17-2003, 02:45 PM

Thanks skulemate, I had read about the RD series previously but dismissed it as a viable PSU powered option due to the 24v required. Of course I could use a decicated 24v PSU, or run the pump at 12v, however it would be totally defeating the point. I am very interested in seeing what the power utilization of a DC pump ys. a similar AC pump would be. I have been trying to find data on this topic from the new DC powered Eheim pumps but my efforts have been fruitless thus far. Perhaps an E-mail to Iwaki-Walchem would be in order.

murray13 · 11-17-2003, 03:22 PM

The RD-20 and the RD-30 will run you around $200 to $275 as of about 10 months ago when I inquired about them.

Also at that time I inquired about the 12VDC option for the MD series (something that at the time was very new and only had a press release). There is a minimum order (100 if I remember correctly). And pricing would depend on availability and price of the DC motor. But I was told in the range of $300 to $350.

Sort of burst that bubble as that takes it out of cost effectiveness.

But as I said that was almost a year ago. Things might have changed since then.

Turbokeu · 11-18-2003, 03:49 AM

Quote:

Originally posted by nexxo
You're not kidding! The Johnson cost me £130,-- ($179,--). Still, it is an awesomely engineered pump and tiny! 18 cm long by 6 cm at its widest point. The Jabsco is cheaper, and even smaller, but still has good performance. It has been used in :this project at ReviewNation.com. Check out the temps.

You're lucky nexxo, I have to pay 259US$ for the CM30P7 from Johnson Pumps Belgium (one week delivery, 200 pumps in stock at Johnson Pumps Sweden).
Anyway I have no choice, the CO30P7's I have I can't trust (possible leaks) + are too noisy, my 1250 is not powerfull enough as does the MCP600, and Iwaki's are too bulky.
I want a 12V pump to be able to control my flowrate through a variable 7 to 13V power supply, and therefore find "the sweet spot" depending on the components used in my cooling setup.

CD

Turbokeu · 11-20-2003, 09:48 AM

Since I have a flowrate of 4.4LPM in my actual setup with a Eheim 1250 (corresponding to a head of 1.8m), with a Johnson CO30 or CM30 in the same setup I should have a theoretical flowrate of more than 20 LPM (following the P-Q curves of both pumps).
Therefore I'd liked to be able to control the flowrate in my cooling setup (see also previous post), so I developped this simple schematic of a variable power supply for Johnson CM10, CM30, CO30, (or other) 12V DC pumps not exceeding 2.5 Amp of current draw:

It's based on National's LM350 3 Amp voltage regulator (bigger brother of the 1 Amp LM317).

The LM350 comes in two possible packages:
- LM350T: plastic TO220
- LM350K: metallic T03
Both versions have the same specs but the thermal resistance of the K-version is a lot lower (due to the metallic housing).
Also the K-version is more expensive (about 9.00$ vs 2.40$ here in Belgium) than the T-version. Both versions can be used in the schematic.
The LM350 must be mounted on a heatsink for heat dissipation.

R1, potmeter P1 and trimpot P2 have been calculated to obtain roughly an output voltage of 7 to 13V (fine tuning of the voltage range is done by P2):

Vout = Vref x (1+((P1+P2)/R1)) , where Vref=1.25V

Mains voltage is transformed to 2x 12V through a 30W (toroidal) transformer and rectified by D1 & D2. Those diodes can be any 3 Amp minimum diodes. C1 & C2 are for smoothing and spike suppression of the rectified voltage. C1 can be any electrolytic capacitor of 2200µF or more, and a voltage of 25V or more.

F1 is the by Johnson Pump advised (slow blow) fuse.

C3 (1µF Tantalium capacitor) is added for increased output stability.

R2 and the LED on the output give a visual indication of the presence of voltage to the pump. If omitted, R2 and the LED should be replaced by a 1K resistor to ensure a minimal load current (minimum 5mA) on the LM350 when the pump is disconnected.

The primary of the transformer is connected to the SPDT contact of a 12V coil relay to switch the pump's PSU together with the PC's PSU.

S2 can be closed to power the pump without the PC's PSU powered on (for leak testing).

I have almost all components available, except for the transformer and the LM350 regulator.
I will do some tests with my two CO30P7 Johnson pumps from Surplus Center under different load conditions, also to measure the max dissipated power of the LM350 and calculate the needed heatsink.

CD

bigben2k · 11-20-2003, 10:00 AM

Nice work!!! thank you!

WAJ_UK · 11-20-2003, 11:18 AM

I have come across these http://www.chrystella.co.uk/acatalo...t_DC_PUMPS.html

No idea what they are like though, I can't find any detailed info on product life

03-06-2003, 10:29 PM	#1
chewyboy Cooling Neophyte Join Date: Dec 2002 Location: us Posts: 75	any good 12v pumps does such a beast exist?

03-10-2003, 03:07 PM	#3
nexxo Cooling Savant Join Date: Jul 2002 Location: Brimingham, UK Posts: 385	You want a capable 12V pump? You got it. Johnson CM30P7-1 is your babe. Small, powerful (414 GPH @ 3ft head) economical (12V @ 2.2 A, 26W) and solid Swedish (think Volvo) engineering. It's magnetic drive (silent, not even the 50-60Hz mains buzz) and continuously rated so you can run it anytime, all the time. It was meant to pump coolant around boat engines or car turbo boosters, so made powerful, reliable and for a rugged environment. It is the car modders pump of choice. Also search this forum for: the Jabsco pump, its smaller brother. The drawback of these is the relatively high price. The housing gets warm under normal operation --about 53C, so you have to keep that in mind when installing it. However people have put it inside a case with no adverse effects on case temps. __________________ "There is a thin line between magic and madness"

03-10-2003, 04:49 PM	#4
Skulemate Cooling Savant Join Date: Jul 2002 Location: Toronto, Canada Posts: 381	Iwaki-Walchem is now making their range of WMD pumps with a 12V motor as an option. I bet they'd cost some serious cash though. __________________ Michael E. Robbins M.A.Sc. Candidate, University of Toronto 12.1 GHz of AMD's finest (17.7 GHz total) crunching proudly for the AMDMB.com Killer Frogs SETI BOINC: Dual Opteron 246s (Iwill DK8N) \| XP2800+ (Shuttle SN41G2) \| 3x XP2400+ (ASUS A7N266-vm) SETI BOINC: 2x P4 2.8E (ASUS P4R800-vm) \| Crunching 24/7

03-11-2003, 01:31 PM	#5
nexxo Cooling Savant Join Date: Jul 2002 Location: Brimingham, UK Posts: 385	You're not kidding! The Johnson cost me £130,-- ($179,--). Still, it is an awesomely engineered pump and tiny! 18 cm long by 6 cm at its widest point. The Jabsco is cheaper, and even smaller, but still has good performance. It has been used in :this project at ReviewNation.com. Check out the temps. __________________ "There is a thin line between magic and madness"

03-11-2003, 04:00 PM	#6
Gerwin Cooling Neophyte Join Date: Sep 2002 Location: Amsterdam Posts: 37	Innovatek is about to introduce a 12V Eheim. __________________ my watercooled system: http://www.xs4all.nl/~philippo

03-06-2003, 10:40 PM	#2
koslov Cooling Savant Join Date: Jul 2002 Location: Posts: 264	http://www.procooling.com/cgi-bin/links/jump.cgi?ID=35

03-12-2003, 02:06 PM	#7
nexxo Cooling Savant Join Date: Jul 2002 Location: Brimingham, UK Posts: 385	That's excellent! Hopefully the price will be reasonable also. __________________ "There is a thin line between magic and madness"

03-12-2003, 03:22 PM	#8
Since87 Pro/Guru - Uber Mod Join Date: Sep 2002 Location: Indiana Posts: 834	This oc-forums thread discusses what may be a good DC pump. Pricy though.

05-01-2003, 01:53 PM	#10
Voodoo Rufus Cooling Neophyte Join Date: Nov 2002 Location: Hollister, CA Posts: 44	Where can you buy that Johnson pump in the US? Looks nice.

05-05-2003, 02:16 PM	#11
nexxo Cooling Savant Join Date: Jul 2002 Location: Brimingham, UK Posts: 385	I got mine from through internet shopping from Denmark (Claus V. Hansen's Eftf.) but you could also try NonStopYacht. They're not cheap, but built like tanks. Mine's mounted like this: to fit in my Lian-Li PC-12 like this: __________________ "There is a thin line between magic and madness"

11-15-2003, 01:49 AM	#12
Maximilium Cooling Neophyte Join Date: Nov 2003 Location: U.S.A. Posts: 68	FOUND IT! http://store.hamiltonmarine.com/browse.cfm/4,6387.html I order this pump today, i hope is worth the money

11-15-2003, 02:17 AM	#13
yoshana Cooling Neophyte Join Date: Sep 2002 Location: MN Posts: 23	Johnson-there was a huge thread about those.. Leaks leaks leaks or something to that order.. Ben recommended them and if I remember right lots of people had problems.. might have just been that model tho.... Swiftech makes a 12v.. and the advantage is it is only 9w and it has a closed impeller very similar to the Iwaki's.... and its only 79.00 http://www.swiftnets.com/products/mcp600.asp Here is pHaestus' test results for several pumps....and the winner is the Swifty... http://forums.procooling.com/vbb/sho...ow+AND+measure

11-15-2003, 02:44 AM	#14
dima y Cooling Savant Join Date: Nov 2002 Location: palo alto, CA Posts: 164	http://www.johnsonmarinepumps.com/sp...ges/cm30p7.htm called these guys before they are from Seattle WA or something like that, $156 or so as i recall from calling them

11-15-2003, 11:27 AM	#15
Maximilium Cooling Neophyte Join Date: Nov 2003 Location: U.S.A. Posts: 68	Read this important information about the Swiftech MCP600 http://forum.oc-forums.com/vb/showth...hreadid=240773 I am building my first water-cool rig, the MCP600 was actualy my first choice, but there are some problems with this pump, and at some stores they are "on hold", I know the CM30P7-1 is expencive, i hope is money well spend cuz i just order 1 yesterday And about the Johnson pump leak, the ones with the problems aparently are the C030P5-1 ( the cheap vercion cost around $30), i have one of those, i tested, no leak so far but it makes more noise compared to my cpu fan! , it will become the "back up pump" Last edited by Maximilium; 11-15-2003 at 03:03 PM.

11-16-2003, 09:38 AM	#16
bigben2k Responsible for 2% of all the posts here. Join Date: May 2002 Location: Texas, U.S.A. Posts: 8,302	A little bit of WD-40 strategically sprayed inside takes care of most of the noise. __________________ WBTA (Water Block Testing Alliance) Nordic Hardware WC 101

11-17-2003, 12:56 PM	#18
Skulemate Cooling Savant Join Date: Jul 2002 Location: Toronto, Canada Posts: 381	No, I don't beyond what I read in their press release. They have a line of 24VDC pumps (the RD series), and there's plenty of info on them, but there's not as much on the DC option for their WMD/MD series. It is mentioned in the FAQ though... perhaps contacting them directly is the best course of action. I've found them to be very helpful (and even a little curious about what I'd need their pump for) in my dealings with them. __________________ Michael E. Robbins M.A.Sc. Candidate, University of Toronto 12.1 GHz of AMD's finest (17.7 GHz total) crunching proudly for the AMDMB.com Killer Frogs SETI BOINC: Dual Opteron 246s (Iwill DK8N) \| XP2800+ (Shuttle SN41G2) \| 3x XP2400+ (ASUS A7N266-vm) SETI BOINC: 2x P4 2.8E (ASUS P4R800-vm) \| Crunching 24/7

11-17-2003, 12:59 PM	#19
brucoman Cooling Savant Join Date: May 2003 Location: Midwest Posts: 157	Pete is THE Iwaki in-house support guy if you ever have any issues with Iwaki pumps. The guy is great!

11-17-2003, 02:45 PM	#20
decodeddiesel Cooling Savant Join Date: Oct 2001 Location: classified Posts: 534	Thanks skulemate, I had read about the RD series previously but dismissed it as a viable PSU powered option due to the 24v required. Of course I could use a decicated 24v PSU, or run the pump at 12v, however it would be totally defeating the point. I am very interested in seeing what the power utilization of a DC pump ys. a similar AC pump would be. I have been trying to find data on this topic from the new DC powered Eheim pumps but my efforts have been fruitless thus far. Perhaps an E-mail to Iwaki-Walchem would be in order. __________________ ...i hurt... do me a favor, disconect me... they can re-work me but i'll never be top of the line again ...i'd rather be nothing...

11-17-2003, 03:22 PM	#21
murray13 Cooling Savant Join Date: Sep 2002 Location: Omaha, NE USA Posts: 216	The RD-20 and the RD-30 will run you around $200 to $275 as of about 10 months ago when I inquired about them. Also at that time I inquired about the 12VDC option for the MD series (something that at the time was very new and only had a press release). There is a minimum order (100 if I remember correctly). And pricing would depend on availability and price of the DC motor. But I was told in the range of $300 to $350. Sort of burst that bubble as that takes it out of cost effectiveness. But as I said that was almost a year ago. Things might have changed since then.

11-20-2003, 09:48 AM	#23
Turbokeu Cooling Savant Join Date: May 2001 Location: Brussels - Belgium Posts: 232	Variable PSU for 12V DC pumps Since I have a flowrate of 4.4LPM in my actual setup with a Eheim 1250 (corresponding to a head of 1.8m), with a Johnson CO30 or CM30 in the same setup I should have a theoretical flowrate of more than 20 LPM (following the P-Q curves of both pumps). Therefore I'd liked to be able to control the flowrate in my cooling setup (see also previous post), so I developped this simple schematic of a variable power supply for Johnson CM10, CM30, CO30, (or other) 12V DC pumps not exceeding 2.5 Amp of current draw: It's based on National's LM350 3 Amp voltage regulator (bigger brother of the 1 Amp LM317). The LM350 comes in two possible packages: - LM350T: plastic TO220 - LM350K: metallic T03 Both versions have the same specs but the thermal resistance of the K-version is a lot lower (due to the metallic housing). Also the K-version is more expensive (about 9.00$ vs 2.40$ here in Belgium) than the T-version. Both versions can be used in the schematic. The LM350 must be mounted on a heatsink for heat dissipation. R1, potmeter P1 and trimpot P2 have been calculated to obtain roughly an output voltage of 7 to 13V (fine tuning of the voltage range is done by P2): Vout = Vref x (1+((P1+P2)/R1)) , where Vref=1.25V Mains voltage is transformed to 2x 12V through a 30W (toroidal) transformer and rectified by D1 & D2. Those diodes can be any 3 Amp minimum diodes. C1 & C2 are for smoothing and spike suppression of the rectified voltage. C1 can be any electrolytic capacitor of 2200µF or more, and a voltage of 25V or more. F1 is the by Johnson Pump advised (slow blow) fuse. C3 (1µF Tantalium capacitor) is added for increased output stability. R2 and the LED on the output give a visual indication of the presence of voltage to the pump. If omitted, R2 and the LED should be replaced by a 1K resistor to ensure a minimal load current (minimum 5mA) on the LM350 when the pump is disconnected. The primary of the transformer is connected to the SPDT contact of a 12V coil relay to switch the pump's PSU together with the PC's PSU. S2 can be closed to power the pump without the PC's PSU powered on (for leak testing). I have almost all components available, except for the transformer and the LM350 regulator. I will do some tests with my two CO30P7 Johnson pumps from Surplus Center under different load conditions, also to measure the max dissipated power of the LM350 and calculate the needed heatsink. CD __________________ My website: http://www.turbokeu.com Backup website: http://www2.turbokeu.com My company: http://www.kdcs.be

11-20-2003, 10:00 AM	#24
bigben2k Responsible for 2% of all the posts here. Join Date: May 2002 Location: Texas, U.S.A. Posts: 8,302	Nice work!!! thank you! __________________ WBTA (Water Block Testing Alliance) Nordic Hardware WC 101

11-20-2003, 11:18 AM	#25
WAJ_UK Cooling Savant Join Date: Oct 2003 Location: Sussex Posts: 109	I have come across these http://www.chrystella.co.uk/acatalo...t_DC_PUMPS.html No idea what they are like though, I can't find any detailed info on product life

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