Comap compression reducing tee PPSU 26x3–26x3–16x2 for plumbing installations

The Comap compression reducing tee PPSU 26x3–26x3–16x2 is a PPSU compression fitting designed for joining and reducing pipe runs in plumbing and heating systems. It creates a secure press-fit connection between two 26 mm pipes and one 16 mm branch, providing a reliable, leak-resistant joint suitable for potable water and central heating circuits where a reduction in diameter is required.

Advantages

Made from PPSU (polyphenylsulfone), this reducing tee offers high mechanical strength, good chemical resistance and long-term dimensional stability. The compression design allows for quick installation without soldering or solvent welding, and provides consistent sealing performance when used with compatible plastic or multilayer pipes. Its compact form factor enables use in confined spaces and simplifies routing of reduced-diameter branches.

Suitable for

• Domestic potable water distribution systems
• Central heating circuits and radiator connections
• Retrofit and renovation projects requiring size reduction
• Installations with plastic or multilayer (composite) pipes

Key specifications

• Material: PPSU (polyphenylsulfone)
• Main connection diameters: 26 mm (outer) with 3 mm wall
• Branch connection diameter: 16 mm (outer) with 2 mm wall
• Compression-style connection for press-fit sealing
• Application: potable water and central heating use
• Compact T-shaped configuration for branch reduction

How to use

Prepare pipe ends by cutting squarely and deburring to ensure full insertion into the compression fittings. Slide the compression nut and sleeve onto each pipe, insert the pipe fully into the tee until it seats against the internal stop, then tighten the compression nuts to the torque recommended by the pipe and fitting manufacturer to form a reliable seal. Verify alignment and test the assembly according to local plumbing codes and pressure-test procedures before final insulation or concealment.

Usage recommendations

Use with compatible plastic or multilayer pipes of matching outer diameters and wall thicknesses. Follow manufacturer guidance for tightening torque and pressure testing intervals. Avoid exposure to direct flame or open heat sources and ensure installation temperatures are within the material’s specified range.