20RZT best pump for me? Any other choices?

JamesAvery22 · 01-18-2005, 10:11 AM

After reading Cathar's pump article Ive been looking for a 20RZ ever since.

Im trying to get a pump for a large setup Im building which consists of:
5' hydronic heater element (ID of the pipe os 1.3" and one pass so low pressure drop) and 5 waterblocks. two mcw6002s, maze4 gpu and nb, and a VRM block that will be just 1/2" ID copper pipe and two 90 degree copper fittings.
The radiator will obviously be external. About 10' of tubing from the pump to the box each way.

The 20RZT wont be too weak, would it? Im having a heck of a time trying to find one, so if I did and bought it and found out it was too weak Id cry like a little school girl. Found one on ebay but the guy said it had toxic medical dye pumped through it so I passed on it. Second one I bid too little too early and got drunk so I missed it.

Just wanted to be sure the 20rzt would be the best pump for me.

nikhsub1 · 01-18-2005, 11:49 AM

The pump will work very well. It would take a lot more than what you propose to make it a bad choice.

JamesAvery22 · 01-18-2005, 12:02 PM

Guess I'll just start hunting classifieds. I cant find any place period thats selling them now =\ Thanks for the agreement though =)

BeerCan · 01-25-2005, 09:12 PM

They have them here http://www.customaquatic.com/customa...subcatID=wp-aq
I got one about 3 weeks ago

JamesAvery22 · 01-28-2005, 12:16 PM

Quote:

Originally Posted by BeerCan

They have them here http://www.customaquatic.com/customa...subcatID=wp-aq
I got one about 3 weeks ago

you get the MD20RZ? Howd the purchase go?

200$ for the pump is kinda high. Think I might just wait for one to show up on ebay again.

brucoman · 01-28-2005, 01:37 PM

md30rz's show up on ebay more often than md20rz's
plus most are 100vac (laser cooling pumps)

JamesAvery22 · 01-28-2005, 02:27 PM

Quote:

Originally Posted by brucoman

md30rz's show up on ebay more often than md20rz's
plus most are 100vac (laser cooling pumps)

Think a 30rz is a little too much for me. Neither are up right now anyways =(

MVC · 01-28-2005, 10:01 PM

They're slightly cheaper here http://www.aquadirect.com/store/cust...me.php?cat=239. What I'd actually like to see is a head-to-head review of the Iwakis and the Blueline "clones" from the same designer.

pauldenton · 01-29-2005, 06:30 PM

Quote:

Originally Posted by JamesAvery22

Think a 30rz is a little too much for me. Neither are up right now anyways =(

there's a 30rz if you don't mind a US motor....
http://cgi.ebay.co.uk/ws/eBayISAPI.d...tem=4352960494

BeerCan · 01-29-2005, 11:06 PM

Quote:

Originally Posted by JamesAvery22

you get the MD20RZ? Howd the purchase go?

200$ for the pump is kinda high. Think I might just wait for one to show up on ebay again.

Purchase went fine. They drop ship from Iwaki so my order took about 7 days to arrive. I was tired of waiting to find one on e-bay so I bit the bullet and bought it. Been happy ever since.

JamesAvery22 · 02-02-2005, 01:43 PM

Quote:

Originally Posted by BeerCan

Purchase went fine. They drop ship from Iwaki so my order took about 7 days to arrive. I was tired of waiting to find one on e-bay so I bit the bullet and bought it. Been happy ever since.

Oh yeah one more question, Voltage? Doesnt the 20RZT come in 115v and 240v and something else?

They list a normal one (no voltage listed) and a 100v one, is the "normal" one 115v US?

Stealth5325 · 02-02-2005, 02:49 PM

Quote:

Originally Posted by BeerCan

Purchase went fine. They drop ship from Iwaki so my order took about 7 days to arrive. I was tired of waiting to find one on e-bay so I bit the bullet and bought it. Been happy ever since.

Here's my question:
On CustomAquatic, they advertise an MD20-RLZT. Iwaki does NOT make that. Did you get an RZT or an RLT?
There's a difference, so I'd like to know.

JamesAvery22 · 02-02-2005, 03:47 PM

Quote:

Originally Posted by Stealth5325

Here's my question:
On CustomAquatic, they advertise an MD20-RLZT. Iwaki does NOT make that. Did you get an RZT or an RLT?
There's a difference, so I'd like to know.

Uh L isnt a pressure rating thing. Z stands for High Pressure. Pretty sure L stands for US voltage. Hence I just answered my own question from above

brucoman · 02-02-2005, 05:17 PM

Quote:

Originally Posted by JamesAvery22

Oh yeah one more question, Voltage? Doesnt the 20RZT come in 115v and 240v and something else?

They list a normal one (no voltage listed) and a 100v one, is the "normal" one 115v US?

dangerous to assume, ask
*should be* 115v

Stealth5325 · 02-03-2005, 05:10 PM

Quote:

Originally Posted by JamesAvery22

Uh L isnt a pressure rating thing. Z stands for High Pressure. Pretty sure L stands for US voltage. Hence I just answered my own question from above

Then what does the X stand for? like RLXT?

Stealth5325 · 02-03-2005, 06:55 PM

Beercan- one other thing:
It says that the pump is NOT threaded. How did you get your hoses on it? I've got 1/2" clearflex and I'm not sure it will stretch over a huge fitting like that.

nikhsub1 · 02-03-2005, 07:37 PM

Quote:

Originally Posted by Stealth5325

Beercan- one other thing:
It says that the pump is NOT threaded. How did you get your hoses on it? I've got 1/2" clearflex and I'm not sure it will stretch over a huge fitting like that.

The fitting isnt that huge, 1/2" ID tubing is no problem.

Stealth5325 · 02-04-2005, 01:50 AM

Quote:

Originally Posted by nikhsub1

The fitting isnt that huge, 1/2" ID tubing is no problem.

Both fittings in and out? Are they barbed?

JoeKamel · 02-04-2005, 12:01 PM

Quote:

Originally Posted by Stealth5325

Then what does the X stand for? like RLXT?

High flow, low pressure.

nikhsub1 · 02-04-2005, 01:16 PM

Quote:

Originally Posted by Stealth5325

Both fittings in and out? Are they barbed?

If the pump head is NOT threaded, then yes it has fixed barbs.

MVC · 02-04-2005, 01:40 PM

Nikhsub1, out of curiosity, what are you using to power the RD-30? I was looking at that pump but wasn't sure I wanted to deal with 24VDC.

01-18-2005, 10:11 AM	#1
JamesAvery22 Cooling Savant Join Date: May 2004 Location: Northern VA Posts: 383	20RZT best pump for me? Any other choices? After reading Cathar's pump article Ive been looking for a 20RZ ever since. Im trying to get a pump for a large setup Im building which consists of: 5' hydronic heater element (ID of the pipe os 1.3" and one pass so low pressure drop) and 5 waterblocks. two mcw6002s, maze4 gpu and nb, and a VRM block that will be just 1/2" ID copper pipe and two 90 degree copper fittings. The radiator will obviously be external. About 10' of tubing from the pump to the box each way. The 20RZT wont be too weak, would it? Im having a heck of a time trying to find one, so if I did and bought it and found out it was too weak Id cry like a little school girl. Found one on ebay but the guy said it had toxic medical dye pumped through it so I passed on it. Second one I bid too little too early and got drunk so I missed it. Just wanted to be sure the 20rzt would be the best pump for me.

01-18-2005, 11:49 AM	#2
nikhsub1 c00ling p00n Join Date: Jun 2002 Location: L.A. Posts: 758	The pump will work very well. It would take a lot more than what you propose to make it a bad choice. __________________ :-.,_,.-:'``':-.,_,.-:'``':-.,_,.-:'``':-.,_,.-:'``':-.,_,.-: E6700 @ 3.65Ghz / P5W DH Deluxe / 2GB 667 TeamGroup / 1900XTX PC Power & Cooling Turbo 510 Deluxe Mountain Mods U2-UFO Cube Storm G5 --> MP-01 --> PA 120.3 --> 2x DDC Ultras in Series --> Custom Clear Res "Artificial intelligence is no match for natural stupidity." 1,223,460+ Ghz Folding@Home aNonForums :-.,_,.-:'``':-.,_,.-:'``':-.,_,.-:'``':-.,_,.-:'``':-.,_,.-:

01-18-2005, 12:02 PM	#3
JamesAvery22 Cooling Savant Join Date: May 2004 Location: Northern VA Posts: 383	Guess I'll just start hunting classifieds. I cant find any place period thats selling them now =\ Thanks for the agreement though =)

01-25-2005, 09:12 PM	#4
BeerCan Cooling Neophyte Join Date: Dec 2004 Location: Florida Posts: 7	They have them here http://www.customaquatic.com/customa...subcatID=wp-aq I got one about 3 weeks ago

01-28-2005, 01:37 PM	#6
brucoman Cooling Savant Join Date: May 2003 Location: Midwest Posts: 157	md30rz's show up on ebay more often than md20rz's plus most are 100vac (laser cooling pumps)

01-28-2005, 10:01 PM	#8
MVC Cooling Neophyte Join Date: Dec 2004 Location: Hell's Kitchen Posts: 7	They're slightly cheaper here http://www.aquadirect.com/store/cust...me.php?cat=239. What I'd actually like to see is a head-to-head review of the Iwakis and the Blueline "clones" from the same designer.

02-03-2005, 06:55 PM	#16
Stealth5325 Cooling Neophyte Join Date: Apr 2004 Location: CA BABY! Posts: 5	Beercan- one other thing: It says that the pump is NOT threaded. How did you get your hoses on it? I've got 1/2" clearflex and I'm not sure it will stretch over a huge fitting like that.

02-04-2005, 01:40 PM	#21
MVC Cooling Neophyte Join Date: Dec 2004 Location: Hell's Kitchen Posts: 7	Nikhsub1, out of curiosity, what are you using to power the RD-30? I was looking at that pump but wasn't sure I wanted to deal with 24VDC.

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