MAGNAPLAST sliding coupling for internal drainage HTU 40 mm 12200

MAGNAPLAST sliding coupling for internal drainage HTU 40 mm (model 12200) is a compact axial sliding connector designed for use with 40 mm HTU wastewater and soil pipes. The coupling provides a movable joint that absorbs thermal expansion and allows for slight axial movement and minor misalignment in indoor sanitary and drainage systems. Constructed for compatibility with standard HTU pipe profiles, this part is intended for concealed or exposed indoor installations where a reliable, adjustable pipe connection is required.

Advantages

The sliding coupling offers axial movement compensation while maintaining a sealed connection to prevent leaks. Its simple design enables quick installation and adjustment during repairs or new assemblies. The coupling is suitable for repeated service access and for situations where thermal expansion, building settlement, or small alignment deviations must be accommodated without stressing the pipe system.

Suitable for

• Indoor sanitary waste and soil pipe installations with 40 mm HTU pipes
• Repair and replacement of damaged pipe connections in bathrooms and utility rooms
• New drainage assemblies where axial movement compensation is required
• Situations with minor alignment adjustments or thermal expansion of pipes

Key specifications

• Designed for 40 mm HTU drainage pipe diameter
• Axial sliding/adjustable coupling type to accommodate movement
• Sealing system to resist wastewater leakage in normal indoor conditions
• Compact form factor for use in concealed and exposed indoor installations
• Material and finish suitable for standard wastewater and soil pipe environments

How to use

Prepare pipe ends by ensuring they are cut square, clean, and free of debris. Insert the coupling over the mating pipe ends according to the HTU profile, allow the axial sliding mechanism to engage, and verify that the coupling is seated evenly on both pipes. After assembly, test the connection by running water and checking for leaks; adjust axial position as needed to allow for intended movement and to align adjoining pipe runs. Follow local plumbing codes and practices for sealing and support of the connected pipe runs.

Usage recommendations

Use the coupling indoors in non-pressurized gravity drainage systems only, and avoid exposure to prolonged direct sunlight or aggressive chemicals. Inspect joints after installation and during routine maintenance to ensure seals remain intact and movement is unobstructed.