Compression Tee SiGMA-Li MT20 — 20×20×20 mm copper pipe fitting

Compression tee SiGMA-Li MT20 — 20×20×20 mm copper pipe fitting is a three-way connector for copper piping systems that enables a branch connection with press-type joints. Designed for potable water, heating and cooling applications, the fitting creates solder-free, mechanically sealed connections using press tools. Its 20×20×20 mm dimensions match common copper pipe sizes, allowing integration into residential and commercial plumbing and HVAC networks.

Advantages

The compression tee provides a reliable mechanical seal without the need for soldering, reducing installation time and eliminating the risks associated with open flames. Press connections deliver consistent, leak-resistant joints when formed with the correct pressing tool and jaws. Constructed for compatibility with copper piping, the fitting supports potable water and heating systems while maintaining corrosion resistance and structural integrity under typical operating conditions.

Suitable for

• Creating a three-way branch in copper potable water systems
• Branching into heating circuits and radiator connections
• Integrating into cooling and chilled water distribution
• Professional plumbing and HVAC installation projects

Key specifications

• Material: copper-compatible press fitting
• Connection type: press (mechanical, solder-free)
• Nominal dimensions: 20×20×20 mm
• Application: potable water, heating, cooling systems
• Seal type: mechanical press joint designed for use with compatible press fittings and tools

How to use

Prepare copper pipes by cutting squarely and deburring the ends to ensure full insertion. Mark insertion depth on each pipe according to the fitting design, insert pipes into the tee until reaching the stop, and verify alignment. Use a compatible press tool with the appropriate jaw size to form the mechanical joint; perform the press operation according to the press tool manufacturer’s instructions. After pressing, inspect each joint visually and perform pressure testing as required by local codes to confirm leak-free performance.

Usage recommendations

Use only press tools and jaws specified for the 20 mm press fittings and follow manufacturer guidelines for tool maintenance and calibration. Avoid soldering or using open flames on press connections. Perform pressure and leak tests after installation and follow applicable local regulations for potable water and heating systems.