Copper coupling KAN-therm Mufa 18 mm (model 2265245002)

KAN-therm Copper coupling Mufa 18 mm is a solid copper fitting designed to join 18 mm copper pipes in plumbing and heating systems. Constructed from corrosion-resistant copper, the coupling provides a reliable, long-lasting joint for both potable water and heating circuits. It is suitable for soldered connections as well as many mechanical joining methods, delivering consistent alignment and flow characteristics in residential and light commercial installations.

Advantages

The solid copper body offers natural corrosion resistance and thermal conductivity, reducing the risk of leaks and ensuring dimensional stability over time. Its 18 mm nominal size matches standard small-diameter copper pipework for simple integration. The coupling's smooth internal surface maintains steady hydraulic performance and minimizes scale buildup. Compatibility with soldering and common mechanical fittings makes it versatile for repair and new-install applications.

Suitable for

• Joining 18 mm copper pipes in domestic water supply systems
• Connections in heating circuits and radiator feed lines
• Repairing or extending existing copper pipe runs
• Light commercial plumbing installations with small-diameter copper tubing

Key specifications

• Material: solid copper
• Nominal size: 18 mm
• Connection type: coupling for soldered or mechanical joints
• Application: potable water and heating systems
• Surface: smooth internal bore for stable flow

How to use

Prepare pipe ends by cutting square and removing burrs; clean the external pipe and internal coupling surfaces to ensure proper wetting if soldering. For soldered joints, apply appropriate flux, assemble the parts, and heat evenly until solder flows to form a continuous seal. For mechanical joining, follow the instructions of the chosen connector or compression fitting, ensuring correct insertion depth and torque. After assembly, inspect the joint visually and perform a pressure test according to relevant installation standards.

Usage recommendations

Use compatible-grade solder and flux for potable water systems and follow local plumbing codes. Inspect fittings for damage before installation and support pipe runs to prevent stress on joints. When used in heating systems, ensure system water chemistry is controlled to minimize corrosion and scale.