Pin hole in brazed joint

Old 09-13-06, 11:39 AM
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Question Pin hole in brazed joint

I have a pin hole leak in a control valve braze joint. System was installed in 1979. I have drained the system, cleaned and fluxed the area and, using MAPP gas, tried to get existing braze to wet out and fill the hole. No luck and no luck getting new braze to flow over the joint.

Any suggestions?
Old 09-13-06, 04:40 PM
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Brazed joint leak

First of all, why are you trying to braze? Solder is just fine. You don't need the extra strength of brazing rod.
To repair the joint you need to take it apart & completely clean both halves. After both halves are clean apply flux & solder the joint.

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