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pipe + nipples

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Garry Coles	03/03/2021 11:29:26
121 forum posts 100 photos	Hi. I was wondering whether to solder or silver solder 5/32 copper pipe to the nipples. My working steam pressure is 90 PSI and I would have thought soft soldering would be strong enough. Can some one advise me please. Garry
Philip Rowe	03/03/2021 11:52:42
248 forum posts 33 photos	Silver solder every time. Whenever in the past I have soft soldered nipples I have always regretted it as they inevitably fracture/break. Phil
Keith Hale	04/03/2021 13:54:03
334 forum posts 1 photos	Hi Gary, Aim for a joint gap of about 0.1mm radial. Aim for a joint length of 5-6x wall thickness of the tube. Ensure components are free of grease. Use appropriate flux. Ideally position soft solder (ring?) Inside the nipple. Like a Yorkshire fitting Heat the nipple to draw the solder through the joint. 90 psi? a walk in the park. Expect a joint strength 100 x that Regards Keith
MichaelR	04/03/2021 15:26:31
528 forum posts 79 photos	I agree with Phil, I always silver solder pipe and nipples and never had bother with fractured joints. If your pipe work is for your William Loco or that D&NY you show in your album then your pipe work needs to be silver soldered. Michael. Edited By MichaelR on 04/03/2021 15:31:25

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