Discuss Galv steel to copper in the USA area at PlumbersForums.net

Plumb Tidy

Gas Engineer
Messages
52
Hi lads any ideas how to join what looks like galv steel to copper. This is the flow pipe to and from the boiler the steel pipe has rubber away on the joist and has corroded.
 

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True weld

compression fittings normally a 3/4 olive
 
I’m not sure how old it is there was a back boiler in the property that go decommissioned then this got put in. Would a normal 3/4 or 22mm compression joint do it?

yes 22mm with a 3/4 olive
 
Great cheers Shaun the true weld you spoke of. Do you believe that’s what’s used to solder the two pipes currently. I usually repair car radiators with some silver solder and rods more like brazing can that be done in this case as it’s non potable water? as I have been wondering what they have used to solder up that’s there already. Cheers for your help mukka!
[automerge]1604956932[/automerge]
I will go for the compression fitting with a ptfe chaser just the solder is a bit more of a better finish
 
Great cheers Shaun the true weld you spoke of. Do you believe that’s what’s used to solder the two pipes currently. I usually repair car radiators with some silver solder and rods more like brazing can that be done in this case as it’s non potable water? as I have been wondering what they have used to solder up that’s there already. Cheers for your help mukka!

that’s the name of the tube

standard leaded solder used
[automerge]1604957031[/automerge]
Great cheers Shaun the true weld you spoke of. Do you believe that’s what’s used to solder the two pipes currently. I usually repair car radiators with some silver solder and rods more like brazing can that be done in this case as it’s non potable water? as I have been wondering what they have used to solder up that’s there already. Cheers for your help mukka!
[automerge]1604956932[/automerge]
I will go for the compression fitting with a ptfe chaser just the solder is a bit more of a better finish

you can try soldering but sometimes you can have problems getting it to hold / leak free
 
Sorted with a compression fitting as Shaun suggested it was a little loose but a roll of PTFE later it was sorted, cheers lads!
 

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Did you use a 3/4 olive in the compression fitting ?
 
Yeah fair enough I did get excited and forgot to pick up the olive I just contacted them to see if all is ok and the first sign of a leak or when I’m in the area I can change it she was happy with that free of charge of course who wouldn’t be happy with that .
 

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