View Full Version : How do you silver solder brass valve to copper without making it brittle
wormy78
Aug 19, 2011, 01:54 PM
I want to silver solder a brass valve to co0pper pipe I have superflow brazing flux how do I use it? Apply like reguler flux or?
speedball1
Aug 19, 2011, 07:36 PM
I have a link that will give you videos on how to solder almost anything. how to silver solder brass - Bing Videos (http://www.bing.com/videos/search?q=how+to+silver+solder+brass&qpvt=how+to+silver+solder+brass&FORM=VDRE#) Good luck, Tom
massplumber2008
Aug 20, 2011, 06:10 AM
Hi Wormy...
Why do you want to silver solder a valve on... why not simply solder the valve on using a lead-free solder and regular flux? What exactly is the application here? Silver soldering valves onto large copper pipe is quite tricky, but not so hard on smaller pipe sizes.
Here is a video on silver soldering using a copper pipe and a ferrule:
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If you do silver solder, as seen in the video, clean the valve and the pipe super well and then apply a light film of the flux... dip the silver solder in the flux as well just prior to applying the silver solder to the valve/pipe for best result.
Let us know if you need more info. OK?
Mark