Pump for waterchiller needed.

[Byron]

Hello everyone,
i'm looking for a pump that is suitable for a waterchiller setup, the cheapest i've found is the Hydor L30. I need thise pump to hook it up on a chiller unit that will circulate the chilled water through some watercooled radiators for a project...

Was thinking to add two Hydor L30's in series to have almost double head pressure (Hydor L30 normaly have 2meter head pressure, so two in series should give me approx 4meters) to cope with the ~3meter pipe work on the engine setup which i'm going to run that pump.

I've also found a domestic pump with 5 meters head pressure, its body is made from steel and the impeller is made from some kind of hard plastic as usual... thing is that the domestic pump costs 70£, but two hydor L30's cost 58£ and the domestic pump operating temperatures are from +5 - 100oC's.

What you guys recon, will the Hydors be reliable for this sort of application or not?

Cheers,
Byron

[DocGolem]

If you're only going to use the pump to push chilled liquid through radiators, I'm sure that pump will work fine. It definately isn't the strongest or the most expensive, but it will get the job done. Make sure that you're not going to use a very thick liquid because the smaller pumps will have problems pushing the liquid.

Currently I'm using the Eheim compact 1000 and it's working fine. I'm only getting about -20c temps and it's flowing pretty well. It's a submersible pump so it may not be ideal for your situation. I'm using a 60/40 distilled water/antifreeze.

[Byron]

Hi and thanks for the quick reply ;)

Going to use antifreeze with distilled water, and maybe a few % of alcohol if i see the mix start freezing.

B

[Skip]

this is good to hear, i have a hydor l40, and i didn't want to get rid of it, but was thinking i was going to be forced to because it couldn't handle low temps.

[Byron]

One quick question,
Got the insulation sheets today, and i want to insulate a plastic tank, how do i attach the neoprene sheets o nthe plastic tank guys?
Do i have to use some sort of glue or something? or just gaffer tape?

Cheers,
B

[FireDragon]

Is it grade 1 or 2 neoprene?

[Byron]

I have no idea... how i can tell that?
Will have a look when i go to the engine site tomorrow...

[godsa]

One quick question,
Got the insulation sheets today, and i want to insulate a plastic tank, how do i attach the neoprene sheets o nthe plastic tank guys?
Do i have to use some sort of glue or something? or just gaffer tape?

Cheers,
B

Don't know about your tank..but I use silcone for my waterblock to attach them (-40c)..not much tho..a very thin thin coat.

Quick question..did you buy from danger? or some other place..if another place let me know..want to check Prices...Tia

[Byron]

Danger? No, i don't know that store here in UK... bought them from Radio Spares (RS).

[Skip]

he was saying danger den watercooling. i just bought 3 5x5" sheets at 1/2 inches, i hope that is enough for all my neoprene needs. i won't be neopreneing my reservoir. i'll find something else for that. where is a good place to buy sealstring? i know crazy pc sells it, but they seem a little overpriced.

[DocGolem]

You can buy sealstring or the equivalent of it at auto parts stores.

They are in these cardboard boxes on the bottom shelf, it's by all the ricer crap at AutoZone. It is used for sealing windsheilds. It isn't as thick as regular seal string, but it is the same stuff.

You can also get dielectric grease there too.

[Skip]

i thought you could get it at autoparts stores, i'll probably pick some up from one then.