Copper reducing nipple SANHA 35 x 15 mm model 5243

Copper reducing nipple SANHA 35 x 15 mm model 5243 is a compact pipe fitting designed to join two copper pipes of different diameters, providing a reliable transition from 35 mm to 15 mm. Manufactured by SANHA, this reducing nipple is intended for use in plumbing and heating systems where downscaling of pipe diameter is required. It is suitable for potable water installations, heating circuits and general copper installation work where a robust, corrosion-resistant connection is needed.

Advantages

The SANHA copper reducing nipple offers corrosion resistance, durable mechanical strength and a clean interior flow path appropriate for potable water and heating media. Its seamless copper construction ensures compatibility with standard copper piping and soldering or brazing techniques, enabling secure joints with minimal risk of leaks when installed correctly. The short, symmetrical design conserves space and simplifies installation in confined areas.

Suitable for

• Reducing a 35 mm copper line to 15 mm in domestic and commercial plumbing
• Connecting supply lines in heating systems and radiators
• Potable water distribution where pipe diameter change is required
• General copper piping repairs and retrofits

Key specifications

• Material: Copper
• Connection type: Straight reducing nipple for soldering/brazing (cup x cup)
• Dimensions: 35 mm × 15 mm (reducing)
• Design: Short, symmetrical reducing piece suitable for inline installation
• Typical applications: Water and heating systems with copper pipework

How to use

Prepare both copper pipe ends by cutting square, deburring and cleaning the outside and inside surfaces to ensure proper fit and solder flow. Insert the smaller and larger pipe ends into the respective cups of the reducing nipple to the correct depth. Use an appropriate flux and apply solder or brazing material according to accepted plumbing standards and local regulations. Allow the joint to cool undisturbed and then inspect for continuity and leaks before putting the system into service.

Usage recommendations

Ensure compatibility of joining technique with the nipple’s copper material—use recommended soldering or brazing practices, follow applicable pressure and temperature limits for the overall system, and perform a pressure test after installation. For potable water systems, use lead-free solders and fluxes that comply with local drinking water regulations.