/diy/ - Do It Yourself

>>824068
>the line is bigger than 1/4" copper tubing that was there before
Not sure if I understand you correctly, but if it's relevant, recall that generally speaking a thin tube can take higher pressure than a thick one. It is actually the ratio of the wall thickness and the inner diameter that decides, which means that a copper tube with a wall thickness of 2mm and inner diameter of 6mm will take more pressure than a copper tube with the same wall thickness but inner diameter 8mm. If you replace a tube in a pressure system with a larger diameter tube, make sure that the wall thickness also increase sufficiently to make up for it.

Also, regarding copper, stainless steel, cast iron etc.: I can't remember the context, but I was once made aware of the importance of chemical compatability when various metals are being used to make a machine or vessel. I think there was a ship or something where critical components were fastened with bolts that were technically excellent, but somehow ended up acting as inadvertent sacrificial anodes for the rest of the construction, so they failed very quickly. I seem to remember that the metals in question was indeed copper and stainless, but I know very little about this, so maybe someone can fill in?