REHAU Trójnik red PX 40-20-40 RAUTITAN PPSU reducer tee 40×20×40 mm

REHAU Trójnik red PX 40-20-40 RAUTITAN PPSU reducer tee 40×20×40 mm is a three-way plumbing fitting made from high-performance PPSU (polyphenylsulfone). It provides a transition between two larger 40 mm pipes and a reduced 20 mm branch, designed for use in potable water and heating systems. The fitting is produced by REHAU and matches RAUTITAN PX installations, offering mechanical strength, chemical resistance and long-term dimensional stability in typical building plumbing environments.

Advantages

The PPSU construction delivers improved impact resistance and temperature tolerance compared with standard thermoplastics, while resisting corrosion and common water-borne chemicals. The reducer tee enables a compact, reliable junction with smooth internal flow paths to reduce turbulence and pressure loss. Manufactured to fit RAUTITAN PX system geometry, the component ensures consistent joint quality and compatibility with corresponding pipe and connection technologies.

Suitable for

• Domestic and commercial potable water distribution systems
• Heating and radiator branch lines in hydronic systems
• Plumbing installations requiring a reduction from 40 mm to 20 mm
• Renovation projects where PP SU fittings are specified for chemical or thermal demands

Key specifications

• Material: PPSU (polyphenylsulfone) — high temperature and chemical resistance
• Configuration: reducer tee with two 40 mm ends and one 20 mm reduced branch
• Connection compatibility: designed for RAUTITAN PX piping geometry and joining methods
• Application temperature range: suitable for typical potable water and heating temperatures (refer to system design limits)
• Flow characteristic: internal smooth contours to minimize pressure losses at the junction

How to use

Install the reducer tee according to RAUTITAN PX system instructions and local plumbing codes. Prepare pipe ends by cutting squarely and deburring, then fit pipes into the corresponding 40 mm and 20 mm ports ensuring full insertion depth. Use the recommended joining method for RAUTITAN PX — follow manufacturer guidelines for press, clamp, or fusion joining as applicable. After assembly, test the installation at working pressure and temperature to verify leak-free performance before commissioning.

Usage recommendations

Store the fitting in a dry, shaded area before installation to prevent UV exposure. Do not exceed the maximum system temperature and pressure specified for RAUTITAN PX installations, and avoid using the part with aggressive fluids that are not compatible with PPSU. For optimal lifespan, follow routine inspection and maintenance practices for plumbing and heating systems.