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Old 01-23-2009, 10:11 PM   #1
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Pex Tubing on Compression Fittings


How often has anyone seen or done this? Are there special adapters for Pex to be used on compression fittings for a stop valve used for a sink?

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Old 01-24-2009, 06:00 AM   #2
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Pex Tubing on Compression Fittings


I haven't done this application but I have seen the adapter fittings
from pex to other pipes for dishwashers and drinking water and fridge lines. Pex had specific fittings when I looked at it two years ago.There
were several suppliers making PEX like piping and several different fittings specific to the brand. They may have become more standardised by now.... take a photo or brand of the fitting you are adapting to and look at the "pex" tubing for printing to identify if it is PEX or another brand just in case

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Old 01-24-2009, 07:27 AM   #3
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Pex Tubing on Compression Fittings


No, but they sell stop valves with pex adaptions already on them, you would just need a 1/2" crimper(i believe you can rent a pair) and some crimp rings, then you can just run your standard 3/8" supply line from the compression fitting to the faucet.
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Old 01-24-2009, 08:30 AM   #4
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Pex Tubing on Compression Fittings


Quote:
Originally Posted by Chemist1961 View Post
I haven't done this application but I have seen the adapter fittings
from pex to other pipes for dishwashers and drinking water and fridge lines. Pex had specific fittings when I looked at it two years ago.There
were several suppliers making PEX like piping and several different fittings specific to the brand. They may have become more standardised by now.... take a photo or brand of the fitting you are adapting to and look at the "pex" tubing for printing to identify if it is PEX or another brand just in case
It's hard to tell by just looking at the brass 3 way stop valve, but it's definitely Pex tubing coming out of the compression nut. The tubing is labeled as such and is made by Merflex.

http://www.mercuryplastics.com/refrigerator.html

Here's more general info:

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What joining systems are available?
There are several methods of connecting PEX, all of which involve mechanical fittings. There are two approved standard specifications for PEX connections: ASTM F 1807 and ASTM F 1960. Both reference mechanical insert fittings. The crimp fittings specified in ASTM F1807 are the most widely used. Other fitting systems, including insert and outside diameter compression fittings, are also available. PEX cannot be joined by solvent cement or heat fusion methods.



http://www.ppfahome.org/pex/faqpex.html


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http://www.homedepot.com/webapp/wcs/...ctId=100129551

Last edited by handy man88; 01-24-2009 at 08:47 AM.
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