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DIY Titanium Heat exchanger under $40
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bruiseandy View Drop Down
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    Posted: April 14 2007 at 6:09pm

Built this for DIY chiller. They key components are the Lapp skintop sln strain relief connectors on the ends. Totally non-metallic and rated up to 70psi. Water will enter and exit via the two 1/2" pvc fittings buit will also  go through a wye strainer and then a flow switch which is why one is threaded and one isnt.
Here's the pics pretty self explanatory but if theres any questions just ask.

(18") 1/2" OD .020" walled titanium ($18 shipped)
(11") 1" sch 40 pvc (laying around)
(2) 1"x1"x1/2" Tees ($1)
(2) 1"x 3/4" adapters (.50)
(2) 3/4" strain relief connectors ($7 each)
(2) 3/8" x 1/2" 316SS swagelok adapters (didnt include in price but they are about $15 a pop)

 










 

 

 



Edited by bruiseandy - April 14 2007 at 7:05pm
Ogden UT
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jfinch View Drop Down
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Points: 7067 		Post Options Post Options   Thanks (0) Thanks(0)   Quote jfinch Quote  Post ReplyReply Direct Link To This Post Posted: April 14 2007 at 7:31pm
Cool.
What do you plan to use as cooling medium?  And how much heat transfer do you expect from a single 18" long 1/2" diam titanium tube?
Jon

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bruiseandy View Drop Down
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It's for a chiller so refrigerant will be used. Will be for a 1/4HP system.  
Ogden UT
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Mike Savage View Drop Down
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Interesting project!


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It's for a chiller so refrigerant will be used. Will be for a 1/4HP system. 
 
Where you getting the system?  In-window AC unit?  Post picture of that modification too.
Jon

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bruiseandy View Drop Down
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Points: 59 		Post Options Post Options   Thanks (0) Thanks(0)   Quote bruiseandy Quote  Post ReplyReply Direct Link To This Post Posted: April 14 2007 at 11:48pm
Using a 1/4hp condensing unit from an old R12 water fountain. Will be a split system so only thing inside will be piping and HX.
Ogden UT
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Points: 141 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Redrock Quote  Post ReplyReply Direct Link To This Post Posted: April 15 2007 at 2:04pm
EXCELLANT thread!  Please keep us informed as to the compresser connection, water flow and switch and all.
 
Also, where did you get the parts? Specificaly the Lapp skintop strain relief connectors.  I have never heard of them.
 
This would make for a very cool seminar at a WMAS meeting too. And someday I am going to attend a few meetings. Tongue
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Points: 59 		Post Options Post Options   Thanks (0) Thanks(0)   Quote bruiseandy Quote  Post ReplyReply Direct Link To This Post Posted: April 15 2007 at 3:21pm
The strain reliefs you can pick up at any electrical supply or controls supplier. Just ask for nema 6 rated strain reliefs. Will be awhile till I get it put topgether as I'm still acquiring parts for new tank. Don't know how diy the refrigeration side is to tell you the truth but I will post pics.
Ogden UT
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rstruhs View Drop Down
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Way cool!  Good luck with this project and please keep us all informed.  What are you planning on putting in your tank that would need cooling?
Rodney, Sandra, Jeffery, and Laura Struhs
South Jordan, Utah 98th South & 40th West.
(801) 282-2744

75 gallon reef
55 gallon reef
55 gallon FOWLR
20 gallon FOWLR
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Points: 59 		Post Options Post Options   Thanks (0) Thanks(0)   Quote bruiseandy Quote  Post ReplyReply Direct Link To This Post Posted: April 15 2007 at 10:11pm
Originally posted by rstruhs rstruhs wrote:

Way cool!  Good luck with this project and please keep us all informed.  What are you planning on putting in your tank that would need cooling?
Just a better safe than sorry deal. 60G acrylic cube with velocity pumps and 250w of light.
Ogden UT
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