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Thread: R410A - Can my pipe take it
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26-06-2009, 09:24 PM #1
R410A - Can my pipe take it
Hi all,
Just wondered if anyone knows or has a link to copper sizes/thicknesses for R410A. How do I know if our supplier is giving us the correct pipe or is all refrigeration pipe the same standard?
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26-06-2009, 09:49 PM #2
Re: R410A - Can my pipe take it
Im preety sure all refrigeration copper (stronger than plumber's copper 'water' ) is a set standard and is suitable for R410a.
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27-06-2009, 12:04 AM #3
Re: R410A - Can my pipe take it
After searching the internet I found a manufacturers website and this link.
http://www.lawtontubes.co.uk/pdfs/La...20-%202008.pdf
It would seem that they only manufacture pipe to one standard, EN 12735-1, therefore all refrigerant pipe is the same and the equipment's safety devices will step in before the pipes maximum working pressure is exceeded. EN 12735-2 is for refrigeration pipe for equipment.
We only install soft copper up to 5/8 but I'm not sure what bending an 1"1/8 pipe does to it's strength.
Check out the copper price index chart for the last few years - quite interesting to see how the recession hit it.
http://www.lawtontubes.co.uk/pdfs/LM...2006+07+08.pdfLast edited by R1976; 27-06-2009 at 12:08 AM.
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27-06-2009, 05:01 AM #4
Re: R410A - Can my pipe take it
It is a marketing ploy by supplier. Do a burst test yourself on a peice of pipe. If CO2 different issue.
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06-07-2009, 12:52 AM #5
Re: R410A - Can my pipe take it
Hi Magoo,
I'm a bit late in rekindling this thread but I have been on holiday for a week.
Do you mean that the use of fittings is a marketing ploy?
Also, what do you mean about CO2, I have no experience of CO2?
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06-07-2009, 04:58 AM #6
Re: R410A - Can my pipe take it
Hi R1976,
when 410a hit these shores all the suppiers said special pipe and special flaring kits, and special torque wrenches were required, the copper was special as well, due to extreme pressures with 410A. Special service gauges as well.
As you said earlier the pipe standard is the same. I think that 5/8 soft drawn was slightly thicker wall
As for CO2, don't go there. Up to 80 bar.
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06-07-2009, 10:43 PM #7
Re: R410A - Can my pipe take it
So do you use standard refrigeration copper for CO2?
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07-07-2009, 04:59 AM #8
Re: R410A - Can my pipe take it
Definitly stainless steel seamless, and small bore. 80 bar plus discharge is serious shyte. Like I said, do not go there. Trans-critical or sub-critical, a whole new technowlogy.
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07-07-2009, 12:43 PM #9
Re: R410A - Can my pipe take it
yep 76 they do use cu pipe in co2 applications
mmm to beer or not to beer...........lets drink breakfast
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