Alkotest TR4025 three-way pipe connector 40/25 mm, red (PP.TR-40/25)

The Alkotest TR4025 three-way pipe connector 40/25 mm is a plastic plumbing fitting designed to join a 40 mm pipe with two 25 mm outlets or to create a branch from a 40 mm line to 25 mm lines. The connector is intended for use in drainage and sanitary systems where reliable change of pipe diameter is required. Its red finish offers easy visual identification during installation and maintenance and the polypropylene construction provides chemical resistance and low weight.

Advantages

The connector combines a straightforward geometry with a durable polypropylene body that resists common household chemicals and moisture. Its dimensions are optimized for standard 40 mm and 25 mm outer-diameter pipes, allowing a tight fit and secure joint when used with appropriate seals or solvent welding methods. The red colour simplifies identification of the branch connection within run piping and reduces the time needed for inspection or servicing.

Suitable for

• Branching a 40 mm drainage or waste line to one or two 25 mm lines
• Domestic sanitary installations such as sinks, washing machines or small drains
• Light commercial drainage where a reduction from 40 mm to 25 mm is required

Key specifications

• Material: polypropylene (PP)
• Connection type: three-way connector for outer-diameter pipes
• Primary diameter compatibility: 40 mm outer diameter
• Secondary diameter compatibility: 25 mm outer diameter
• Colour: red for visual identification
• Application area: drainage, sanitary and light commercial plumbing

How to use

Select matching 40 mm and 25 mm outer-diameter pipes and prepare pipe ends by cleaning and deburring. Fit the connector to the 40 mm run and align the 25 mm branches in the required direction. Depending on the installation method, use compatible sealing rings, solvent weld, or approved adhesive to ensure a watertight joint. Verify alignment and secure the assembly until the connection is fully set and leak-free. Follow local plumbing codes and manufacturer recommendations for jointing methods and allowable loads.

Usage recommendations

For reliable, long-term performance use compatible seals and follow the recommended jointing technique for polypropylene fittings. Avoid exposure to temperatures or chemicals outside the material’s specified range and inspect connections periodically for signs of wear or leakage.