Compression reducing tee Comap MultiSkin PPSU 26x26x20 for plumbing systems

Compression reducing tee Comap MultiSkin PPSU 26x26x20 for plumbing systems is a three-way fitting manufactured from PPSU (polyphenylsulfone) designed to connect two equal-diameter pipes (26 mm) with a reduced branch (20 mm). The fitting is suitable for potable water and heating installations and is intended for distribution, branching and repair tasks in residential and commercial plumbing systems. Its MultiSkin compression connection provides a secure mechanical joint without soldering or adhesive, simplifying installation and maintenance.

Advantages

The PPSU material offers high resistance to chemicals, hydrolysis and elevated temperatures, ensuring reliable long-term performance in hot-water and central heating circuits. Compression connections allow quick assembly and disassembly while maintaining leak-tight performance when installed correctly. The reducing tee design enables straightforward branching from a main line to a smaller-diameter feed without additional adapters, saving time and reducing system complexity.

Suitable for

• Potable (drinking) water distribution systems
• Domestic and commercial heating installations
• Branching from main pipelines to smaller service lines
• Repair and replacement of existing pipework using compression fittings

Key specifications

• Material: PPSU (polyphenylsulfone)
• Connection type: MultiSkin compression fitting
• Sizes: two inlets 26 mm, reduced branch 20 mm
• Application: potable water and heating systems
• Operating temperature: suitable for typical domestic hot water and heating temperatures (as per PPSU material limits)
• Installation method: mechanical compression, no welding or solvent required

How to use

Prepare the pipe ends by cutting square and deburring to ensure a clean, straight insertion. Slide the compression nut and ring (if applicable) onto the pipe, fully insert the pipe into the fitting until it seats on the stop, then tighten the compression nut by hand and finish with the recommended tool torque or according to the manufacturer’s tightening guidance to achieve a leak-tight joint. For the reduced branch, insert the 20 mm pipe into the branch connection and follow the same sequence. Verify alignment and secure piping to supports to avoid strain on the fitting. After assembly, pressurize and inspect the system for leaks before commissioning.

Usage recommendations

Use fittings and pipes within the specified temperature and pressure limits for PPSU materials. Avoid exposing the fitting to aggressive substances not compatible with PPSU and follow local plumbing codes and manufacturer installation instructions. When working with potable water systems, ensure cleanliness during assembly to prevent contamination.