Joining PEX

Joining PEX does not require the use of chemicals or open flame. There are actually a number of methods to connect the system when it is necessary to make a fitting.

The most popular among professional plumbers is the expansion system. This method uses a PEX-reinforcing ring on the end of the pipe and then requires an expansion tool to expand the pipe and ring so it can accommodate a fitting. As the pipe and ring shrink back to their normal size, a solid, strong connection is created onto the fitting that holds tight with thousands of pounds of radial force. Keep in mind that this connection method is designed specifically for PEX-a pipe, which offers the greatest amount of crosslinking during its manufacture. The result is a pipe that is more flexible with the most shape and thermal memory.