When the Ball Valve is in the open position the hole in the ball is lined up with the opening in the copper pipes on either side of it. When the ball valve is in the closed position the holes disappear from in front of the pipe openings and no water can flow through. Soldering in a ball valve is no different from soldering a regular copper joint. Here is how to solder in a ball valve on a new copper water pipe installation.

1.Dry fit the copper piping on either side of the ball valve. Pull the copper pipe out and clean it. Use Emory paper to sand the outside of the copper pipe until it’s bright and shiny looking. Push a wire-fitting brush into both ends of the ball valve and twist it around to clean the inside of the copper tubing of the valve.

2.Brush paste flux on the outside of the copper pipe and the inside of both ends of the Ball Valve.

3.Push the copper pipe ends into the ball valve. Before starting to solder make sure the ball valve is in the open position. This means the handle of the ball valve is parallel to the copper pipe.

4.Light the propane torch. Hold a spool of wire solder in the non-dominant hand. Start heating up the copper pipe where it enters the ball valve on just one side. Watch the flux. When it turns brown and gooey in appearance and starts to bubble the metal is getting hot enough for the solder to flow.

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