KAN-therm threaded coupling 20 x 3/4" PP, internal thread, model 04103121

KAN-therm threaded coupling 20 x 3/4" PP is a compact polypropylene (PP) coupling with an internal 3/4" female thread and a 20 mm socket for fusion with KAN-therm plastic pipe systems. Designed to create a sealed transition between 20 mm plastic piping and standard 3/4" threaded fittings or valves, this coupling is suitable for potable water and general fluid distribution wherever PP fittings are specified. The coupling provides a durable, corrosion-resistant connection that is compatible with typical plumbing and heating installations.

Advantages

The polypropylene construction ensures chemical and corrosion resistance while keeping the component lightweight. The integrated 3/4" internal thread allows direct connection to common brass or composite threaded fittings without additional adapters. The 20 mm socket is intended for reliable thermal or electrofusion joining with PP pipe, producing a leak-resistant joint when installed according to manufacturer guidelines. The compact form factor saves space in installation areas and facilitates retrofit or new-build applications.

Suitable for

• Connecting 20 mm PP pipe to 3/4" threaded valves, taps or fittings
• Plumbing systems for potable water distribution
• Heating circuits and secondary distribution lines where PP fittings are used
• Renovation works requiring compact pipe-to-thread transitions

Key specifications

• Material: polypropylene (PP)
• Pipe connection diameter: 20 mm (socket for fusion)
• Thread type: internal 3/4" female thread
• Suitable media: potable water and general fluids compatible with PP
• Properties: corrosion-resistant, lightweight, chemical-resistant

How to use

Prepare the 20 mm PP pipe by cutting squarely and deburring the end. Clean the pipe end and the coupling socket surfaces to remove any dirt, grease or debris. Join the pipe into the coupling socket using the appropriate fusion method specified for PP systems (hot-melt welding or electrofusion), following the fusion equipment and temperature/time settings recommended by the pipe and fitting manufacturers. After cooling, screw the mating 3/4" threaded fitting or valve into the internal thread, using appropriate thread sealant or tape rated for potable water if required. Verify the assembled connection for alignment and perform pressure testing according to installation standards.

Usage recommendations

Use compatible fusion equipment and follow local plumbing codes. Select thread sealants approved for potable water if sealing is needed on the 3/4" threaded connection. Avoid exposing the coupling to temperatures or media outside the limits specified for PP piping systems; consult system documentation for maximum operating pressure and temperature.