Copper reducing nipple SANHA 5243 35 x 18 mm

The SANHA 5243 copper reducing nipple 35 x 18 mm is a solid copper fitting designed to join two copper pipes of different diameters in plumbing and heating systems. It provides a compact, rigid transition between a 35 mm and an 18 mm copper tube, suitable for installations where a secure metal-to-metal connection is required. Manufactured to common industry dimensions, this reducing nipple is intended for use with compatible copper tubing in domestic and commercial water and heating circuits.

Advantages

This reducing nipple is made from copper, offering good thermal conductivity and corrosion resistance in typical potable water and heating applications. Its simple straight design ensures a rigid, space-efficient connection without additional solder rings or complex assemblies. The product’s dimensional compatibility allows straightforward integration into existing copper pipework, reducing installation time and the need for multiple transitional fittings.

Suitable for

• Connecting 35 mm copper pipe to 18 mm copper pipe in potable water systems
• Transitions between supply and distribution lines in heating systems
• Retrofit work and repairs where a compact, rigid join is needed
• Commercial and domestic plumbing installations using copper tubing

Key specifications

• Material: Copper
• Type: Reducing nipple (straight)
• Connection: Socket/pipe fit for copper tubing
• Dimensions: 35 mm to 18 mm diameter transition
• Typical applications: Water supply and heating systems

How to use

Prepare both copper pipes by cutting squarely and deburring the inner and outer edges. Ensure pipe ends are clean and free of oxidation or contaminants before assembly. Insert each pipe end into the corresponding side of the reducing nipple until a proper stop is reached. Depending on installation practice and local code, secure the joint using an appropriate method compatible with copper fittings (such as capillary soldering, brazing, or approved mechanical joining method). Follow system pressure testing procedures after installation to confirm leak-free connections.

Usage recommendations

Use with copper tubing of the specified diameters and follow local plumbing regulations. Verify compatibility with the chosen joining method and with fluids in the system. Avoid exposure to aggressive chemicals that could accelerate corrosion of copper components.