Johnson pump deal?

bigben2k · 05-12-2003, 09:01 PM

Going through my junkmail, and actually following up on some of the interesting tidbits...

I found a source for that Johnson pump some of us have been dreaming about:

click me!
(edit: session ID removed)

Specs are: Permanent magnet motor. Furnished with mounting bracket. Requires flooded inlet. Not self priming.

12 volts DC
2.2 amps
Duty continuous
7 GPM @ 1.5 PSI
Ports 3/4" hose barb
Temp range 40 - 170 deg F
Size 6" x 3" x 2 1/4"
Shpg 2 lbs

At $29.99, it's hard to beat!

bigben2k · 05-12-2003, 09:25 PM

Err ok... there's still 416 in stock, how come?

Here's the thread with the details as to why it's such an amazing pump. (Sorry Nexxo!)

jaydee · 05-12-2003, 09:58 PM

Well if a certain pump doesn't arive soon I might have to look into this one. Might look into it anyway.

Pritorian · 05-13-2003, 03:56 AM

Iv´e got that pump inn my rig now.

I´m ok pleased with it, but one thing you all need too look out for is the heat it generates, iv´e allready had too, retrn one because it´died on my, sniff... but a little fan that is blowing over it at all times keeps it under controle

The pressure is good, but the flown rate isn´t the best.

All inn all, and ok pump for the size, but not for the cheap pepole out there...

-Edit-
The price here inn norway for this pump is about 100$ so you get it CHEAP!

-P-

dima y · 05-13-2003, 05:11 AM

YOU PEOPLE MAKE ME SPEND TOO MUCH MONEY

remind me what does not self priming mean. Just before i buy it

btw bigben2k did you buy one?

mad mikee · 05-13-2003, 08:08 AM

Interesting thing when I ordered and added myself as new customer, your info was there, Ben?:shrug: Not there anymore (and thankfully neither is mine

bigben2k · 05-13-2003, 08:40 AM

I think I fixed it, thanks!

It must have setup an ID on the session: I entered my info after posting the link!

Well, I guess some of you know who I am

. I just hope no one ordered one on my account

mad mikee · 05-13-2003, 08:46 AM

Looking at specs looks like unmarked CM-30, but what does 1.5 PSI translate to as far as head?, is this good?(I hope):shrug:

/edit never mind read the other thread and so 3ft, 356 GPH. now to figure out when to add it to the new setup.

bigben2k · 05-13-2003, 08:50 AM

1.5 psi is about 3 1/2 feet (41.5 inches to be exact), and that's not the maximum...

joemac · 05-13-2003, 08:51 AM

Wow junk mail that was useful

What next ???

bigben2k · 05-13-2003, 09:15 AM

Quote:

Originally posted by dima y
remind me what does not self priming mean. Just before i buy it

btw bigben2k did you buy one?

"not self priming" means that if you run a hose from the inlet to a bucket, it's not going to suck up the air, so that it can run the water.

No I didn't pick one up yet, but I'm so tempted! I don't think Radius would go well with it. I'm also hesitant in putting an inductive load on my PSU.

For more power, I might pick up two of them, but my budget doesn't allow that frivolous expense right now

Volenti · 05-13-2003, 10:14 AM

Quote:

Originally posted by bigben2k
" I'm also hesitant in putting an inductive load on my PSU.

so your system doesn't have any fans or other components with motors in them, like harddrives, cdrom's ect...

Since87 · 05-13-2003, 10:31 AM

It's not likely that pump behaves like an inductive load anyway.

More likely it behaves like a brushless DC fan and puts pulses of current through the windings. Hard to say how high the instantaneous current draw might get. It might be a good idea to put a fat capacitor in parallel with one of these.

bigben2k · 05-13-2003, 10:48 AM

Maybe because it's on the 12v line, it won't affect system stability.

I like the cap idea. Any idea what rating? Nexxo's pump draws 12 volts, and has a max power rating of 26 Watts, for a max amperage of ~2.2 amps. I know it's useless without knowing the RPM.

In the mean time, I found a spec sheet for this pump:
http://www.johnson-pump.com/JPMarine...IB-CM10_30.pdf (PDF, 20 pages)

Here's the flow curve, for all three variations:
http://www.johnson-pump.com/JPMarine...10_30_c090.htm

The good news is that this Johnson pump is the heavier model that Nexxo described, the CM30P7-1.

A quick chart gives these flow/pressure ratings:
3.3 feet @ 6.9 gpm
6.6 feet @ 5.2 gpm
9.8 feet @ 2.4 gpm

Max pressure: 5 psi: that's 11 1/2 feet, or 3.5 meters.
Max flow is 30 l/m, that's 7.9 gpm, or 474 gph.
That's a good pump!!!

Since87 · 05-13-2003, 11:14 AM

Quote:

Originally posted by bigben2k
I like the cap idea. Any idea what rating?

I'd guess something like a 2200uF, 16V, aluminum electrolytic.

Without seeing waveforms on a scope though, it's a pretty rough guess.

bigben2k · 05-13-2003, 11:27 AM

I'm googled out, for an RPM.

I'm picking one up: can't take it anymore!

PS: the housing is rated for max 2.5 bars, which means it can handle a few of these connected in series.

Syncore · 05-13-2003, 01:55 PM

I decided to pick one up. For $30 it was worth the gamble and I still have a few regular pumps around for a backup just in case it doesn't work out.

bigben2k · 05-13-2003, 01:59 PM

412 left...

dima y · 05-13-2003, 06:01 PM

thx for the reply got 2!

airspirit · 05-14-2003, 02:21 PM

I'm going to have my brother pick up a few. He wants to build a watercooled dually in a briefcase (approx. 3U sized) with a foldout LCD monitor, one power plug, and a completely silent design. This pump would aid in keeping the size down.

bigben2k · 05-14-2003, 02:39 PM

408 left...

The pump is 6 inches long, and max 3 inches high. The diameter of the housing appears to be a bit more than 2 inches.

nexxo · 05-14-2003, 02:42 PM

@ Bigben: darn, you beat me to it!

No probs, it is a pump worth mentioning.

The CM30P7-1 is indeed outstanding. Built like a tank. Like the other Johnson (a.k.a Jabsco), it too gets a bit hot during normal operation (about 53 degrees C).

Quote:

I´m ok pleased with it, but one thing you all need too look out for is the heat it generates, iv´e allready had too, retrn one because it´died on my, sniff... but a little fan that is blowing over it at all times keeps it under controle

... and that is exactly why I mounted mine where I did... just behind the Rad fan, so it picks up some of the airflow, but without obstructing it.

hara · 05-14-2003, 03:07 PM

What waterblocks did you use there?

nexxo · 05-14-2003, 03:12 PM

This one. There's some threads on them in this forum.

mad mikee · 05-16-2003, 10:17 PM

Got my pumps. VERY Compact for the power.

Planning to get the WW mk 2 from DTEK.

How does the idea of the pump being suspended w/about 6" of tube feeding the inlet of the above wb sound as far as a good idea. Would it be worth it? :shrug: block would only be about 15" above pump in present system.

05-12-2003, 09:01 PM	#1
bigben2k Responsible for 2% of all the posts here. Join Date: May 2002 Location: Texas, U.S.A. Posts: 8,302	Johnson pump deal? Going through my junkmail, and actually following up on some of the interesting tidbits... I found a source for that Johnson pump some of us have been dreaming about: click me! (edit: session ID removed) Specs are: Permanent magnet motor. Furnished with mounting bracket. Requires flooded inlet. Not self priming. 12 volts DC 2.2 amps Duty continuous 7 GPM @ 1.5 PSI Ports 3/4" hose barb Temp range 40 - 170 deg F Size 6" x 3" x 2 1/4" Shpg 2 lbs At $29.99, it's hard to beat! __________________ WBTA (Water Block Testing Alliance) Nordic Hardware WC 101 Last edited by bigben2k; 05-13-2003 at 09:11 AM.

05-12-2003, 09:25 PM	#2
bigben2k Responsible for 2% of all the posts here. Join Date: May 2002 Location: Texas, U.S.A. Posts: 8,302	Err ok... there's still 416 in stock, how come? Here's the thread with the details as to why it's such an amazing pump. (Sorry Nexxo!) __________________ WBTA (Water Block Testing Alliance) Nordic Hardware WC 101

05-13-2003, 03:56 AM	#4
Pritorian Cooling Savant Join Date: Sep 2002 Location: Norway Posts: 201	Iv´e got that pump inn my rig now. I´m ok pleased with it, but one thing you all need too look out for is the heat it generates, iv´e allready had too, retrn one because it´died on my, sniff... but a little fan that is blowing over it at all times keeps it under controle The pressure is good, but the flown rate isn´t the best. All inn all, and ok pump for the size, but not for the cheap pepole out there... -Edit- The price here inn norway for this pump is about 100$ so you get it CHEAP! -P- __________________ Boo!

05-13-2003, 08:08 AM	#6
mad mikee Cooling Savant Join Date: Oct 2001 Location: US of A!!!! Posts: 146	At that Price I'll take 2!!! Interesting thing when I ordered and added myself as new customer, your info was there, Ben?:shrug: Not there anymore (and thankfully neither is mine __________________ His PCV2000 DFI ULTRA D (SLI Modded just because) 4200 x2 @ ~ 10 x 260 /1.49 Vcore , G5 + PA160 + 150mm Papst@5V + Maze 4 GPU + mcp350. Temp 36-37(load-2 x D20L) 2x1GB Ballistix PC4000, x800xl 256m, 74G rap + 160G Hitachi SATA , 21" mit/nec 1920x1440 Crt + 19 Neovo F-419 1280x1024 LCD, OCZ Powerstream 600 Hers: (my beloved who lets me do all this) LianLi PCV1000, SD3700 @ 9x300, 1GB GBLA, 250+ 120 SATA, X700pro, 19" Neovo F-419 LCD, another OCZ 600

05-13-2003, 08:40 AM	#7
bigben2k Responsible for 2% of all the posts here. Join Date: May 2002 Location: Texas, U.S.A. Posts: 8,302	I think I fixed it, thanks! It must have setup an ID on the session: I entered my info after posting the link! Well, I guess some of you know who I am . I just hope no one ordered one on my account __________________ WBTA (Water Block Testing Alliance) Nordic Hardware WC 101

05-12-2003, 09:58 PM	#3
jaydee Put up or Shut Up Join Date: Dec 2001 Location: Spokane WA Posts: 6,506	Well if a certain pump doesn't arive soon I might have to look into this one. Might look into it anyway.

05-13-2003, 05:11 AM	#5
dima y Cooling Savant Join Date: Nov 2002 Location: palo alto, CA Posts: 164	YOU PEOPLE MAKE ME SPEND TOO MUCH MONEY remind me what does not self priming mean. Just before i buy it btw bigben2k did you buy one?

05-13-2003, 08:46 AM	#8
mad mikee Cooling Savant Join Date: Oct 2001 Location: US of A!!!! Posts: 146	More Info? Looking at specs looks like unmarked CM-30, but what does 1.5 PSI translate to as far as head?, is this good?(I hope):shrug: /edit never mind read the other thread and so 3ft, 356 GPH. now to figure out when to add it to the new setup. __________________ His PCV2000 DFI ULTRA D (SLI Modded just because) 4200 x2 @ ~ 10 x 260 /1.49 Vcore , G5 + PA160 + 150mm Papst@5V + Maze 4 GPU + mcp350. Temp 36-37(load-2 x D20L) 2x1GB Ballistix PC4000, x800xl 256m, 74G rap + 160G Hitachi SATA , 21" mit/nec 1920x1440 Crt + 19 Neovo F-419 1280x1024 LCD, OCZ Powerstream 600 Hers: (my beloved who lets me do all this) LianLi PCV1000, SD3700 @ 9x300, 1GB GBLA, 250+ 120 SATA, X700pro, 19" Neovo F-419 LCD, another OCZ 600 Last edited by mad mikee; 05-13-2003 at 08:58 AM.

05-13-2003, 08:50 AM	#9
bigben2k Responsible for 2% of all the posts here. Join Date: May 2002 Location: Texas, U.S.A. Posts: 8,302	1.5 psi is about 3 1/2 feet (41.5 inches to be exact), and that's not the maximum... __________________ WBTA (Water Block Testing Alliance) Nordic Hardware WC 101

05-13-2003, 08:51 AM	#10
joemac Cooling Savant Join Date: Dec 2002 Location: Dallas Posts: 339	Wow junk mail that was useful What next ???

05-13-2003, 10:31 AM	#13
Since87 Pro/Guru - Uber Mod Join Date: Sep 2002 Location: Indiana Posts: 834	It's not likely that pump behaves like an inductive load anyway. More likely it behaves like a brushless DC fan and puts pulses of current through the windings. Hard to say how high the instantaneous current draw might get. It might be a good idea to put a fat capacitor in parallel with one of these.

05-13-2003, 10:48 AM	#14
bigben2k Responsible for 2% of all the posts here. Join Date: May 2002 Location: Texas, U.S.A. Posts: 8,302	Maybe because it's on the 12v line, it won't affect system stability. I like the cap idea. Any idea what rating? Nexxo's pump draws 12 volts, and has a max power rating of 26 Watts, for a max amperage of ~2.2 amps. I know it's useless without knowing the RPM. In the mean time, I found a spec sheet for this pump: http://www.johnson-pump.com/JPMarine...IB-CM10_30.pdf (PDF, 20 pages) Here's the flow curve, for all three variations: http://www.johnson-pump.com/JPMarine...10_30_c090.htm The good news is that this Johnson pump is the heavier model that Nexxo described, the CM30P7-1. A quick chart gives these flow/pressure ratings: 3.3 feet @ 6.9 gpm 6.6 feet @ 5.2 gpm 9.8 feet @ 2.4 gpm Max pressure: 5 psi: that's 11 1/2 feet, or 3.5 meters. Max flow is 30 l/m, that's 7.9 gpm, or 474 gph. That's a good pump!!! __________________ WBTA (Water Block Testing Alliance) Nordic Hardware WC 101 Last edited by bigben2k; 05-13-2003 at 10:58 AM.

05-13-2003, 11:27 AM	#16
bigben2k Responsible for 2% of all the posts here. Join Date: May 2002 Location: Texas, U.S.A. Posts: 8,302	I'm googled out, for an RPM. I'm picking one up: can't take it anymore! PS: the housing is rated for max 2.5 bars, which means it can handle a few of these connected in series. __________________ WBTA (Water Block Testing Alliance) Nordic Hardware WC 101

05-13-2003, 01:55 PM	#17
Syncore Cooling Neophyte Join Date: Aug 2002 Location: Albuquerque, NM Posts: 5	I decided to pick one up. For $30 it was worth the gamble and I still have a few regular pumps around for a backup just in case it doesn't work out.

05-13-2003, 01:59 PM	#18
bigben2k Responsible for 2% of all the posts here. Join Date: May 2002 Location: Texas, U.S.A. Posts: 8,302	412 left... __________________ WBTA (Water Block Testing Alliance) Nordic Hardware WC 101

05-13-2003, 06:01 PM	#19
dima y Cooling Savant Join Date: Nov 2002 Location: palo alto, CA Posts: 164	thx for the reply got 2!

05-14-2003, 02:21 PM	#20
airspirit Been /.'d... have you? Join Date: Jul 2002 Location: Moscow, ID Posts: 1,986	I'm going to have my brother pick up a few. He wants to build a watercooled dually in a briefcase (approx. 3U sized) with a foldout LCD monitor, one power plug, and a completely silent design. This pump would aid in keeping the size down. __________________ #!/bin/sh {who;} {last;} {pause;} {grep;} {touch;} {unzip;} mount /dev/girl -t {wet;} {fsck;} {fsck;} {fsck;} {fsck;} echo yes yes yes {yes;} umount {/dev/girl;zip;} rm -rf {wet.spot;} {sleep;} finger: permission denied

05-14-2003, 02:39 PM	#21
bigben2k Responsible for 2% of all the posts here. Join Date: May 2002 Location: Texas, U.S.A. Posts: 8,302	408 left... The pump is 6 inches long, and max 3 inches high. The diameter of the housing appears to be a bit more than 2 inches. __________________ WBTA (Water Block Testing Alliance) Nordic Hardware WC 101

05-14-2003, 03:07 PM	#23
hara Cooling Savant Join Date: Oct 2002 Location: Malta, Mediterranean Posts: 662	What waterblocks did you use there? __________________ - Every great HD crash day is the day before back-up day. - My Past System - "Better to reign in Hell than serve in Heaven." - Milton, Paradise Lost. - FMZ

05-14-2003, 03:12 PM	#24
nexxo Cooling Savant Join Date: Jul 2002 Location: Brimingham, UK Posts: 385	This one. There's some threads on them in this forum. __________________ "There is a thin line between magic and madness"

05-16-2003, 10:17 PM	#25
mad mikee Cooling Savant Join Date: Oct 2001 Location: US of A!!!! Posts: 146	silly question Got my pumps. VERY Compact for the power. Planning to get the WW mk 2 from DTEK. How does the idea of the pump being suspended w/about 6" of tube feeding the inlet of the above wb sound as far as a good idea. Would it be worth it? :shrug: block would only be about 15" above pump in present system. __________________ His PCV2000 DFI ULTRA D (SLI Modded just because) 4200 x2 @ ~ 10 x 260 /1.49 Vcore , G5 + PA160 + 150mm Papst@5V + Maze 4 GPU + mcp350. Temp 36-37(load-2 x D20L) 2x1GB Ballistix PC4000, x800xl 256m, 74G rap + 160G Hitachi SATA , 21" mit/nec 1920x1440 Crt + 19 Neovo F-419 1280x1024 LCD, OCZ Powerstream 600 Hers: (my beloved who lets me do all this) LianLi PCV1000, SD3700 @ 9x300, 1GB GBLA, 250+ 120 SATA, X700pro, 19" Neovo F-419 LCD, another OCZ 600

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)