For PEX joints, which statement lists the correct joining methods?

For PEX joints, which statement lists the correct joining methods?

• A. Solder and glue
• B. Compression and crimp
• C. Glue and tape
• D. Threaded adapters

Answer: (B)

PEX joints rely on mechanical joining methods that seal without heat or solvent bonding. The two common ways to create a PEX joint are crimp fittings and compression fittings. In a crimp joint, a metal ring around the pipe is cinched tight with a special tool to lock the pipe into the fitting and form a watertight seal. In a compression joint, a nut tightens a ferrule or sleeve to compress the PEX into the fitting, also sealing the connection. Glue and solder aren’t used with PEX—glue is for solvent-based plastics like PVC, and soldering is for copper and requires heat that can damage PEX. Tape isn’t a method for sealing PEX joints, and while threaded adapters can connect PEX to other materials, the standard and reliable joining methods for PEX are compression and crimp.

PEX joints rely on mechanical joining methods that seal without heat or solvent bonding. The two common ways to create a PEX joint are crimp fittings and compression fittings. In a crimp joint, a metal ring around the pipe is cinched tight with a special tool to lock the pipe into the fitting and form a watertight seal. In a compression joint, a nut tightens a ferrule or sleeve to compress the PEX into the fitting, also sealing the connection.

Glue and solder aren’t used with PEX—glue is for solvent-based plastics like PVC, and soldering is for copper and requires heat that can damage PEX. Tape isn’t a method for sealing PEX joints, and while threaded adapters can connect PEX to other materials, the standard and reliable joining methods for PEX are compression and crimp.