Iwaki RD30...for those that have experience with one, I have a few questions please

[Maxspam]

How is bumping a thread from ages ago any different from creating a new thread with a similar topic?

[phelan1777]

Bumping a thread is bringing information already shared previously instead of others re-posting something that was already stated and usually someone is to lazy to search for.

Look through the thread and see what was already said, compare it with newer threads and see if there is consistent or differing information/knowledge share then and now.

[NaeKuh]

How is bumping a thread from ages ago any different from creating a new thread with a similar topic?

good point.

however if the thread is more then 6 months old, and you have a completely new question, i feel you should make a new one and ask.

Old threads also contain old data, so its not always wise to go by very old threads.

[phelan1777]

Look through the thread and see what was already said, compare it with newer threads and see if there is consistent or differing information/knowledge share then and now.

good point.

however if the thread is more then 6 months old, and you have a completely new question, i feel you should make a new one and ask.

Old threads also contain old data, so its not always wise to go by very old threads.

Not worded the same, but that was my intent.

reference the old material and see if there is a small/major change in opinions/thoughts from those that either posted said information or have posted differing results and somewhere in between lies the truth/fact.

[NaeKuh]

Not worded the same, but that was my intent.

reference the old material and see if there is a small/major change in opinions/thoughts from those that either posted said information or have posted differing results and somewhere in between lies the truth/fact.

your GF is brainwashing you phelan.

your starting to sound like her too.

[phelan1777]

your GF is brainwashing you phelan.

your starting to sound like her too.

Eh maybe.........though, I have often been told that when I get on a roll, i should have been a Lawyer, with or with out her.

Law school would be way to boring for me and I am not ethical enough to be a Lawyer :P.

[Maxspam]

Bumping a thread is bringing information already shared previously instead of others re-posting something that was already stated and usually someone is to lazy to search for.

Look through the thread and see what was already said, compare it with newer threads and see if there is consistent or differing information/knowledge share then and now.

Duly noted. However since the sin has already been committed hows about them internal shots.

[phelan1777]

Duly noted. However since the sin has already been committed hows about them internal shots.

I couild swear there were pics around here some where, if not I guess I could reach down to my right and pull one of the pumps out, get off my arse, find a digital cam 4 feet to my left, eventually dig up a screw driver 2feet to my right........endure the torture of un screwing the face place of the pump.

Forcibly moving the camera to about eye level, straining my finger to depress the shutter button a few times.

Grunting with the pain of fumbling with the cap covering the memory card, attempt to with draw the card, expend valuable energy placing the card into the correct slot if I can figure out which one that is.

With reluctance finding the right folder/file, begrudgingly upload it to something called foto buketz? Suffer the agony of having to type in a interwebz addrezzzzzz to stumble my way back here, just to share a linkage of to glorify a piece of metal and plastic

[Maxspam]

You dont HAVE to...
It was sort of a curiosity thing to find out what all the hype was about and to notice the differences between that and lets say mcp655.
Diddnt think this thread would get so much attention.

[Mutant_Tractor]

I know this is a thread ressurection and i think a 1st post so this will look really bad but i bought an Iwaki RD-30 and a Meanwell S-150-24,
I used the pot on the Meanwell to undervolt it as far as it can gobut on my voltmeter its saying 19.82V which as far as i know too high to create a good heat dump/flow rate ratio,
Is there any way i can get my MW down to 18V? I tried putting resistors in series with the pump but they fried even high wattage ones, is there any way to replace that pot for one that will allow me to get down to 18v? at the moment AFAIK it has a 1K pot, does anyone know what sort of wattage and rating pot to get to get it down further? a 2k one should do but its just the exact specs im worried about, i dont want too much heat generated over the pot either, rapid electronic should do what im looking for but i have no idea what im looking for wattage wise,
I know thats a lot of info but i really need your help guys, iv been building my Lian-Li PC-343 for 2 years now and have just hit one problem after another, ill post up pics soon if you like,
Any help is greatly appreciated
Thanks guys!

[Ketzer7]

If you're willing to set the Meanwell aside, Alphacool has this available now:

http://www.performance-pcs.com/catal...ducts_id=27034

It allows you to set the voltage between 12V and 24V in 3V increments. Probably pretty handy for the RD-30. No idea about the quality of it though, so YMMV..

[Mutant_Tractor]

I do like that thing a lot...
It would be very handy though i doubt it has the capacity to run an RD-30, its a pretty high wattage piece of machinery, I like the fact i wouldnt need to also put an extra kettle plug into the back of my lian-li to get it to start up with the computer,
Does anyone know if this could run an RD-30 and not srew it over, i think youll understand my worry as its not a cheap pump
Thanks anyway man!

[Ketzer7]

Dunno, but Alphacool sell it as a package with this pump and it states 17W

http://www.alphacool.com/shop/Pumps/...lts--3317.html


Don't know anything about the Iwaki's power draw, but maybe that will help you..

[Mutant_Tractor]

Found this graph:

So depending on the load its from ~25-38W

[Vinas]

I believe that you do have a point with the heat dump problem but I think that if you can regulated the voltage, you can control the heat dump and hopefully the noise with not too much of a hit on pressure.

If you mount a 90mm fan at the back of the pump then heat dump goes down considerably. Also, the ac120 pumps are capable of much higher output than the 24vdc models. Like others have posted it depends on model numbers. My panworld/blueline does 480GPH @ 13.5'.

More here:
http://www.marinedepot.com/pumps_pan..._px_ps-ap.html

[Ketzer7]

<shrug> Dunno then. All I can say is that PPCs does offer that Alphacool power supply with the RD-30 if you buy it as a package, so I assume they think it must be adequate to run the Iwaki, but I have no idea if that's true or not. Like I said, YMMV with this, but for only $30 it might be worth a shot..

[Mutant_Tractor]

Im not in a position to change pumps now, i spent £120 on this pump and theres no returning it now,
Well if they sell it with the RD-30 it must run it, ill see if i can get one here in the UK, its a pain ordering stuff from the US

EDIT:
While im at it, im deciding on a res, i have 1/2' ID tubing (Tygon) and i want to know whats the least restrictive res, i really want a tube one like the EK Res the V2 one but aparrently is a 1/4' bore in it but i guess with my pump i should have a for of restriction to make it run smoother?

EDIT #2:
Did more research and went for the EK Res, i dont really need to worry about flow rates with this pump, now just gotta figure out where to mount the damn thing and what PSU to use, if i can find that one in the UK ill buy it,
Pics to follow

[Waterlogged]

There is another option for powering the Iwaki.

This should work the same. You can get it completely assembled through the drop down menu if your not that good or brave with electronics.

[NaeKuh]

There is another option for powering the Iwaki.

This should work the same. You can get it completely assembled through the drop down menu if your not that good or brave with electronics.

wont work WL.

3A max.

Its about as good for a DDC.

# Input: 3.5V - 40V DC
# Output: 65V DC, 3A
# Regulation range: 5V - 55V variable output

The RD-30 needs a min startup amperage higher then that.
Thats why there was a whole debate on if the S150-24 was even good enough for the pump.

Hey OP, Skinnee has my entire RD-30 package with a relay switch.
I even have a Slappy res for it, so you should ask him for pictures, or find it yourself.

[Waterlogged]

wont work WL.

3A max.

Its about as good for a DDC.

Then why the hell do they show it hooked up to an Iwaki in the pictures?

[skinnee]

Max Amp draw I measured on Naekuh's RD-30 (same one Martin tested) was 2.80A.

[NaeKuh]

Then why the hell do they show it hooked up to an Iwaki in the pictures?

i have no idea.. ima have to tell hank about that later.

But i am 100% sure, that wont work for an RD-30.

Possible an RD-20, but definitely not a RD-30.

As i said, we got into a HUGH debate on that when the RD-30 was the Must have Rolls Royce pumps.
The debate was that a S150-24 wasnt enough and could cause start up damage.

If i recall you need about 10amps startup.

Max Amp draw I measured on Naekuh's RD-30 (same one Martin tested) was 2.80A.

Cam im talking about startup.
And dont tell me you dont remember this debate either.

[Mutant_Tractor]

Thats what i thought, plus it doesnt output at 18v which is what i really want, the easiest option is to mod the pot on my meanwell i think?
I dont have a problem with soldering or electronics iv wired and soldered the fan controller etc to suit my trigger switches, iv done a lot of fiddly stuff with IC 4026 counting chips for my technology course so this should be a breeze, anyone know of any good 40W pots that would suit the need, i guess i could use V=IR to work out what resistance i need too?

[Waterlogged]

i have no idea.. ima have to tell hank about that later.

But i am 100% sure, that wont work for an RD-30.

Possible an RD-20, but definitely not a RD-30.

As i said, we got into a HUGH debate on that when the RD-30 was the Must have Rolls Royce pumps.
The debate was that a S150-24 wasnt enough and could cause start up damage.

Hm, skinnee just confirmed it will work .

Thats what i thought, plus it doesnt output at 18v which is what i really want, the easiest option is to mod the pot on my meanwell i think?
I dont have a problem with soldering or electronics iv wired and soldered the fan controller etc to suit my trigger switches, iv done a lot of fiddly stuff with IC 4026 counting chips for my technology course so this should be a breeze, anyone know of any good 40W pots that would suit the need, i guess i could use V=IR to work out what resistance i need too?

If you look closely at the unit, it looks variable, even says so in the specs.

[NaeKuh]

Hm, skinnee just confirmed it will work .

If you look closely at the unit, it looks variable, even says so in the specs.

*sigh*

WL... must i remind u on DC pumps, the startup voltage is always higher then operation voltage?