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Best way to solder copper to pex adapter, with raised collar in the middle?

Best way to solder copper to pex adapter, with raised collar in the middle?


Old 06-23-13, 03:37 PM
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Best way to solder copper to pex adapter, with raised collar in the middle?

I'm going to be soldering on a pex adapter to the copper side of my plumbing. When the adapter has a raised collar in the middle, similar to the one shown at http://s3.pexsupply.com/images/produ...q4517550-1.jpg , do you sweat it with the copper side pushed all the way up to that collar, or do you back it off a bit so the solder can flow easier into the joint? Seems like if the copper side is pushed all the way up to that raised collar on the adapter, the space would be so tight that the solder might have a tough time getting into the joint all the way.
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Old 06-23-13, 04:02 PM
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I treat them just like any other fitting. Clean the snot out of it. Cover with flux and insert the pipe until it stops with no backing off. Apply heat and then add solder.
Old 06-23-13, 05:09 PM
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I would leave a gap... That is an inside fitting that fits in a fitting...

IMO I would get regular pex adapters. Makes life easy......

Your choice though.....
Old 06-24-13, 04:17 AM
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I think I'm with Mike on this one. Leave a small gape so the solder can get into where it should.
The end of the copper pipe is rarely perfect and would make butting and soldering to the raise a real pain. The inside of the pipe should hopefully be perfect or close enough to create the required seal.
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