VIEGA PEXFIT T-piece 20×20×20 mm, brass press fitting for PEX pipe

VIEGA PEXFIT T-piece 20×20×20 mm is a press fitting engineered for connecting three 20 mm PEX pipes in potable water and heating systems. Constructed with a brass body and designed for use with PEX tubing, this T-piece provides a mechanical, press-type joint that removes the need for soldering or adhesive. It is intended for installers and professionals who require quick, reliable connections compatible with PEXFIT press tools and standard 20 mm PEX pipework.

Advantages

The brass construction ensures corrosion resistance and dimensional stability under normal operating conditions. The press fitting design offers consistent, leak-resistant joints when installed with compatible press tools and jaws, reducing installation time compared with traditional joining methods. Because no heat or solvent is required, the fitting is suitable for tight spaces and reduces fire risk during assembly.

Suitable for

• Connecting three 20 mm PEX pipes in domestic potable water systems
• Branching runs in underfloor heating and low-temperature heating circuits
• Retrofit or new-build plumbing installations using PEX tubing
• Situations where mechanical, solder-free connections are preferred

Key specifications

• Connection type: press fitting for PEX pipes
• Material: brass body suitable for plumbing applications
• Size: 20 mm × 20 mm × 20 mm
• Compatible medium: potable water and heating fluids where PEX is specified
• Assembly method: mechanical press joint requiring compatible press tool and jaws

How to use

Prepare PEX tubing by cutting squarely and removing any burrs or deformation. Insert each 20 mm PEX pipe fully into the fitting until the stop is reached. Use the appropriate PEXFIT-compatible press tool and the correct jaw size for 20 mm press fittings. Perform the press operation according to the tool manufacturer's instructions to form the permanent mechanical connection. After pressing, visually inspect the joint to confirm complete compression and proper alignment.

Usage recommendations

Use authorised press tools and regularly calibrated jaws to ensure consistent joint quality. Follow local plumbing codes and the PEX tubing manufacturer's guidelines for maximum temperature and pressure limits. Store fittings in a dry environment and avoid mechanical damage before installation.