Reduction nipple SANHA SANHA-Therm ZWxZZ 42ax35 – reducing pipe fitting 42 x 35 mm

SANHA-Therm ZWxZZ reduction nipple 42ax35 by SANHA is a reducing pipe fitting designed to join two pipes of different diameters, providing a secure transition from 42 mm to 35 mm. Made for thermal and plumbing systems, the fitting is intended for installations where reliable reduction between compatible copper or similar metal pipes is required. The product supports use in heating, hot-water and refrigeration circuits where a compact, direct reduction coupling is needed.

Advantages

The reduction nipple offers a compact design that minimises space requirements while maintaining a consistent internal flow path between dissimilar pipe sizes. Manufactured to industry standards, it ensures mechanical stability and leak-tight connections when installed correctly in soldered or compatible joining methods. Its construction provides thermal durability appropriate for heating and hot-water applications and reduces the need for additional adapters or bespoke fittings.

Suitable for

• Residential and commercial heating systems
• Hot-water supply and circulation lines
• Refrigeration and cooling circuits with compatible pipe materials
• Plumbing installations requiring a direct diameter reduction from 42 mm to 35 mm

Key specifications

• Type: reduction nipple (reducing pipe fitting)
• End diameters: 42 mm to 35 mm
• Material compatibility: copper and compatible metal pipes
• Application: thermal, heating, hot-water and refrigeration systems
• Design: compact, inline reduction for direct pipe joining

How to use

Prepare both pipe ends by cutting square and cleaning the surfaces according to standard plumbing practice. Slide the fitting onto the larger pipe end and into the smaller pipe ensuring proper alignment for an even joint. Install the reduction nipple using the appropriate joining method recommended for the system — for example soldering, brazing or other compatible techniques for the materials in use — following applicable safety and installation standards. After joining, verify the connection for correct alignment and perform a pressure or leak test as required by the installation guidelines.

Usage recommendations

Use this reduction nipple only with compatible pipe materials and joining methods. Confirm system pressure and temperature limits before installation, and follow local regulations and manufacturer guidelines for soldering or brazing. For optimal performance in heating and refrigeration systems, ensure proper thermal insulation around the joint where needed and test the assembly under working conditions before commissioning.