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03-12-2010, 05:59 PM #1
Capillary tube Chart for Lenght vs Size
Hi all,
I got a situation where I need Capillary tubes of size: 0.094'' ID 15.75'' Lenght. Problem is, the manufacturer I deal with doesn't have this ID and could be three months before he can send me some.
I could get some 0.079 ID Cap tubes ( Closest I got on hand ) & I heard there were charts that could help me determine the right lenght to use. Where can I find those ?
It would be for R-22 @ 30 000BTU/Hr , 1 outdoor unit & 3 Indoor , Inverter Compressor. Do I have to get the same exact Capillaries or can I calculate equivalency with those 0.079 ID ones ?
I made the rule of three but really think it must be harder than that to find the equivalency.
Here's what it looks like..:
0.079 divided by 0.094 = 0.8404255
0.8404255 times 15.75 = 13.236701
So I would use a 13 7/16'' Lenght.
Waiting for your Expert advises
Thanks,
Nice site BTW !
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03-12-2010, 06:18 PM #2
Re: Capillary tube Chart for Lenght vs Size
Attached is the Fluid diagram, I thought it might help.
I need the Caps# 3,4 & 5, those at the end of the condenser.
Thanks again !
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03-12-2010, 08:06 PM #3
Re: Capillary tube Chart for Lenght vs Size
You could try the free calculation software from Danfoss, namely Dancap.
http://www.danfoss.com/BusinessAreas...ils/DanCap.htm
It may help.
edit: Just had a look at your diagram; those capillaries are part of the condenser unit, you do not have to add them to the system,Last edited by Brian_UK; 03-12-2010 at 08:51 PM.
Brian - Newton Abbot, Devon, UK
Retired March 2015
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07-12-2010, 06:20 PM #4
Re: Capillary tube Chart for Lenght vs Size
hi
try actrol capillary conversion chart
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08-12-2010, 02:57 AM #5
Re: Capillary tube Chart for Lenght vs Size
Use this formula to convert the ID or length of a cap tube:
(L1/L2) = (D1/D2)^5.4
^ means to the power ofEven Einstein Asked Questions
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17-12-2010, 07:42 PM #6
Re: Capillary tube Chart for Lenght vs Size
Thanks everyone !
Since I wasn't too sure about the 'to the power of' thing & didn't want to go through the Danfoss Registration ( maybe another time though ), I used the 'actrol capillary conversion chart' & it worked as a charm.
The exact dimensions were not there but I used the modifier of '0.095 to 0.08' ( 0.46 ) & applied it to my '0.094 to 0.079'. So I put 7 1/4 long of the 0.079 Capillary Tubes I had.
It may not be the exact precise theorical fit but has to be close enough.
Anyway, who cares about possessing THE perfect system as long as they got what they want & feel comfortable ..unless their a pain in the ass.. & we know there are some
Thanks again,
I appreciate your quick answers, and they were all good ones so once again, Very nice site !
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