Wago PEX Elbow 20 x 1/2" Male Thread K1-2012-1G, crimp connection

Wago PEX Elbow 20 x 1/2" Male Thread K1-2012-1G is a 90° crimp-type fitting designed to connect 20 mm PEX tubing to a 1/2" male threaded metal component. The fitting combines a PEX-compatible press/crimp connection on the tube side with a machined male thread on the other end, allowing a compact change of direction in potable water and heating circuits when installed with compatible PEX pipes and correct crimping technique.

Advantages

The fitting offers a compact 90° connection that minimizes space requirements and simplifies routing of PEX lines. Its crimp-style PEX connection provides a robust, leak-resistant joint when installed with recommended crimp rings and tools. The metal male-threaded outlet ensures secure mating with standard 1/2" female threaded valves, adapters or components. Materials and design enable use in potable water and heating systems when installed according to applicable standards.

Suitable for

• Connecting 20 mm PEX pipe to 1/2" threaded valves or fixtures
• Changing direction by 90° in potable water supply lines
• Use in heating circuits where a threaded outlet is required
• Retrofit work where PEX meets existing threaded plumbing

Key specifications

• Connection type: crimp-style PEX connection on tube side and male metal thread on outlet
• Tube size compatibility: 20 mm PEX
• Thread size: 1/2" male thread (metal)
• Angle: 90° elbow
• Application: potable water and heating systems when used with compatible piping and tools

How to use

Prepare the PEX pipe by cutting squarely and deburring the end. Slide the appropriate crimp ring over the pipe, insert the pipe fully into the fitting until it seats, then position the ring over the fitting sleeve and compress with the correct crimping tool to the manufacturer's recommended dimension. Thread the male end into the corresponding female threaded component using suitable thread sealing method if required by the installation standard. Verify all joints visually and pressure-test the system according to local regulations before putting into service.

Usage recommendations

Use compatible 20 mm PEX pipes, approved crimp rings and the correct crimping tool calibrated for the ring type. Do not reuse fittings after removing from a crimped joint. Follow local plumbing codes and perform pressure testing to ensure leak-free installation.