Soda machine chiller?
- Thread starter KEITHMC
- Start date
Fans with evaporative cooling will cool a lot, as long as you have something for an autopoff unit, and have a low humidity house. Personally I don't like chillers they are to expensive to operate and a room AC unit will not only keep the tank cool, but it will also keep me cool.
Kim
Kim
douggiestyle
New member
the reason that commercial salt water chillers dont use ss is that the ss will corode (eventually) leaking the refrigerant into the tank. and this is not something that will happen over night. with only pure water running through the system, what is the worry? please come up with a logical answer?
ok so that said. as i mentioned earlier in your case keith ss is ok.
check out this thread http://www.reefcentral.com/forums/showthread.php?s=&threadid=785135
it is a project that ive been working on.
marine grade ss is very resistant to corrosion when in a submerged environ. in a salt pray test it corrodes much faster. still i would not use stainless in a chiller design using a coolent that would contaminate the tank. but again if you are using pure water and the thing springs a leak 3 years from now who cares its only water.
This is a real easy question to answer. The metals in the SS are slowly coroding building up in the saltwater of your aquarium. I don't like the idea of adding extra metals to the water in my reef aquarium. Since the cooling medium in this case is not a problem (not that I was worried about the coolent killing everything in the first place). I don't like the idea of adding extra amounts of the metals that are used to create the SS.
Kim
[QUOTE with only pure water running through the system, what is the worry? please come up with a logical answer?
marine grade ss is very resistant to corrosion [/QUOTE]
If I understood the question, he will be putting the tubing in the soda machine and running tank water throught it,
I've worked with metals for over 30 years and never heard of marine grade stainless,
some stainless are corrosion resistant such as ss 316, 321 and A286, but it's much harder to work with than the anealed titanium.
marine grade ss is very resistant to corrosion [/QUOTE]
If I understood the question, he will be putting the tubing in the soda machine and running tank water throught it,
I've worked with metals for over 30 years and never heard of marine grade stainless,
some stainless are corrosion resistant such as ss 316, 321 and A286, but it's much harder to work with than the anealed titanium.
douggiestyle
New member
If I understood the question, he will be putting the tubing in the soda machine and running tank water throught it,
I've worked with metals for over 30 years and never heard of marine grade stainless,
some stainless are corrosion resistant such as ss 316, 321 and A286, but it's much harder to work with than the anealed titanium. [/QUOTE]
http://www.google.com/search?source...SUNA:2005-52,SUNA:en&q=marine+grade+stainless
ss flex gas connector is not hard to bend
douggiestyle
New member
the coolent killing everything is the problem. but with pure water it is not a problem.
the ss metal coroding is not an issue. and then the majority would be iron. tiny amount of molybdenum. some carbon a little bit of nickle and chromium.
304 or 316 is marine grade stainless. 316 being the best. i believe the ss gas flex connectors are of the 304 variety or close to it (303 ?).
now i know that someone may say that chromium is poisonous and they would be correct. but remember that ss is used in the body for med devises regularly. and so far i havent been poisoned. and the body is pretty salty.
also key is submersion not a salt spray. salt spay is the main cause for ss corrosion.
xrunner1234
New member
Very close.
douggiestyle
New member
ti is a poor heat conductor so you would do no better with it.
if my chem is right the more ductile a metal is the more conductive. ti is pretty hard therefor it it is poor conductor. gold on the other hand is a good heat conducter.
and no offense kim, because you had a very logical fear. check out the contents of kent marine essential ellements.
http://www.kentmarine.com/saltwater/ee.html
and sorry i confused chromium poisoning with cadmium poisoning
if my chem is right the more ductile a metal is the more conductive. ti is pretty hard therefor it it is poor conductor. gold on the other hand is a good heat conducter.
and no offense kim, because you had a very logical fear. check out the contents of kent marine essential ellements.
http://www.kentmarine.com/saltwater/ee.html
and sorry i confused chromium poisoning with cadmium poisoning
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ok i have been using my SS chiller 10 years and still running strong, i have the same setup with a soda chiller, i ran copper on the cooler fins of the chiller and then i used a transition to go to a ss coil so i can drop it in the sump, i used a thin plastic heat shrink over the ss in the sump to keep water off it. it chills great and that heat shrink tube is only pennies per foot and offers no insulation value and i also pump fresh water thru my lines...hope this helps...jeff
