Welded Tee Fitting SiGMA-Li SIGMA LI - GZ. 20 x 1/2 for PE-RT piping

Welded tee fitting SiGMA-Li SIGMA LI - GZ. 20 x 1/2 for PE-RT piping is a branch fitting designed for integration into PE-RT (polyethylene of raised temperature resistance) distribution systems. The fitting provides a GZ. 20 x 1/2 threaded branch connection combined with butt-weld ends for PE-RT pipes, enabling secure welded joints and a compact geometry that fits plumbing and heating installations. It is intended for use in potable hot-water distribution, heating circuits and other systems where welded connections ensure leak-free performance under elevated temperatures.

Advantages

The tee fitting offers reliable welded joints with consistent alignment for PE-RT pipelines, reducing the risk of misalignment and leaks. Its threaded branch connection allows straightforward attachment of valves or accessories without modifying the main welded run. Manufactured to suit common heating and plumbing requirements, the fitting supports sustained service at temperatures typical for hot-water and heating applications while maintaining mechanical stability and flow continuity.

Suitable for

• Branching PE-RT hot-water distribution lines
• Connecting heating circuits and manifold runs
• Plumbing installations requiring welded pipe joints
• Systems where a threaded branch (G 1/2) is needed for valves or sensors

Key specifications

• Connection type: butt-weld ends for PE-RT pipe with a threaded branch G 1/2
• Branch size: G 1/2 (female/male thread as specified by installer requirements)
• Material compatibility: PE-RT piping systems
• Application: plumbing and heating (hot-water distribution, heating circuits)
• Geometry: tee fitting for inline welding with a perpendicular threaded outlet

How to use

Prepare PE-RT pipe ends according to welding guidelines for a clean, square cut and remove any debris or oxidation. Align the butt-weld ends of the tee with the prepared pipe ends and perform the appropriate welding method for PE-RT (hot-tool butt fusion or compatible welding technique), ensuring correct temperatures and pressure for a full-strength joint. After welding and cooling, fit the G 1/2 threaded branch with the required valve, sensor or accessory using suitable sealing material on the thread where indicated by the system design. Verify alignment and conduct pressure testing as part of commissioning.

Usage recommendations

Use certified PE-RT welding equipment and follow local regulations and manufacturer welding parameters. Confirm material compatibility and pressure/temperature limits of the complete system before installation. Conduct pressure tests after installation and before handing the system into service.