Coupling with internal thread KAN-therm 20 x 1/2" PP model 04103120

The KAN-therm coupling with internal thread 20 x 1/2" PP (model 04103120) is a polypropylene transition fitting designed to connect a 20 mm plastic pipe to a 1/2" male threaded fitting or valve. It provides a reliable plastic-to-threaded connection within KAN-therm plumbing and heating systems, offering chemical and corrosion resistance typical of PP components and compatibility with common installation methods for PPR and similar plastic piping.

Advantages

The coupling delivers a secure threaded interface without the need for metal adapters, reducing corrosion risk and simplifying inventory. Its polypropylene construction ensures chemical resistance, low thermal conductivity and long service life in potable water and heating circuits. The compact design and standard 1/2" thread make it compatible with a wide range of valves and fittings commonly used in residential and commercial installations.

Suitable for

• Connecting 20 mm plastic pipe to 1/2" male threaded valves and fittings
• Plumbing systems carrying potable water
• Heating circuits in residential and light commercial installations
• Retrofit jobs where a plastic-to-threaded transition is required

Key specifications

• Material: Polypropylene (PP)
• Pipe size: 20 mm
• Thread size: 1/2" internal thread compatible with standard 1/2" male threads
• Application: Plumbing and heating systems
• Design: Compact coupling for transition between plastic pipe and threaded fitting

How to use

Prepare the 20 mm pipe end according to the chosen joining method for KAN-therm PP systems (cut square, deburr and clean). Insert the pipe into the coupling and complete the connection following the manufacturer's recommended fusion or mechanical joining procedure for the system. Apply appropriate thread sealant (e.g., PTFE tape or liquid sealant) to the male thread before engaging the coupling to ensure a leak-free threaded joint. Tighten to the torque appropriate for plastic fittings to avoid overstressing the coupling.

Usage recommendations

Use the coupling in systems operating within the temperature and pressure limits specified for KAN-therm PP components. Avoid excessive torque when tightening to threaded metal fittings and ensure thread sealant compatible with polypropylene is used. For installations carrying drinking water or in heating systems, follow local codes and KAN-therm installation guidelines to ensure long-term performance.