KAN-therm coupling with female thread 50x6 / 4" PP - model 04103150

The KAN-therm coupling with female thread 50x6 / 4" PP (model 04103150) is a polypropylene (PP) transition fitting designed to join PP pipe to a 4" male threaded component. It provides a corrosion-resistant and chemically stable connection between plastic piping systems and threaded valves, adapters or fixtures. The coupling is intended for use in plumbing and heating systems where a secure, leak-minimised threaded interface is required.

Advantages

The coupling is made of polypropylene, which offers good chemical resistance and long-term dimensional stability in typical water and heating media. Its integrated female thread simplifies installation when connecting to threaded fittings, and the PP body eliminates galvanic corrosion risks associated with metal-to-plastic transitions. The fitting is lightweight and compatible with press or heat-fusion joining methods used for PP piping, providing a durable joint with low maintenance requirements.

Suitable for

• Connecting PP pressure pipes to 4" threaded valves and fixtures
• Domestic and commercial plumbing systems
• Heating circuits where corrosion-free transitions are required
• Systems requiring chemical-resistant plastic fittings

Key specifications

• Material: polypropylene (PP)
• Pipe size compatibility: 50x6 mm
• Thread type: internal 4" thread
• Application: pressure piping for plumbing and heating
• Connection type: plastic socket to female thread

How to use

Prepare the PP pipe end by cutting squarely and deburring the inner and outer edges. Ensure the pipe outer diameter matches the 50x6 mm specification and clean contact surfaces from dust and grease. Join the pipe to the coupling using the approved joining method for PP (e.g., electrofusion, socket fusion or appropriate mechanical press system) until a secure, leak-free fusion or mechanical connection is achieved. Tighten the mating male threaded component by hand initially, then use appropriate tools to complete the connection without over-torquing to avoid damaging the plastic thread.

Usage recommendations

Verify compatibility of fluids, temperature and pressure with polypropylene fittings before installation. When connecting to metal threads, use a suitable sealing method (PTFE tape or approved sealant) and avoid excessive torque. Follow local plumbing and heating codes and the pipe manufacturer’s guidance for fusion or mechanical joining procedures.