Copper reducing coupler SANHA 22 x 18 mm model 5240 (152402218)

Copper reducing coupler SANHA 22 x 18 mm model 5240 is a precision-manufactured fitting designed to join copper pipes of two different diameters. The coupler provides a mechanically stable and sealed transition between 22 mm and 18 mm copper tubing for plumbing, heating and cooling systems. Constructed from copper material, it is intended for installation and repair work where a downsize in pipe diameter is required.

Advantages

The SANHA reducing coupler ensures a secure, leak-resistant connection between 22 mm and 18 mm copper pipes thanks to accurate dimensions and consistent wall thickness. Its copper construction offers good corrosion resistance and thermal conductivity appropriate for water and HVAC applications. The coupling is compact, straightforward to install in tight spaces, and compatible with standard copper pipe joining methods, allowing technicians to perform reliable repairs and system modifications.

Suitable for

• Domestic and commercial plumbing where a diameter reduction is needed
• Heating systems, including radiators and underfloor heating circuits
• Cooling and air-conditioning lines that use copper tubing
• Repair and retrofit work on existing copper pipe networks

Key specifications

• Material: copper
• Connection sizes: 22 mm to 18 mm
• Type: reducing coupler for copper pipes
• Suitable medium: water and typical HVAC fluids
• Installation method: soldering or compatible mechanical joining techniques for copper

How to use

Prepare pipe ends by cutting square and removing burrs and oxide layers. Clean the mating surfaces and apply appropriate flux if soldering; insert pipe ends fully into the coupler and perform a solder or brazed joint according to applicable practices and local regulations. For mechanical joining methods compatible with copper fittings, follow the tool and technique manufacturer instructions. After joining, inspect the joint visually and pressure-test the system to confirm there are no leaks.

Usage recommendations

Use the SANHA copper reducing coupler in systems designed for copper piping and ensure compatibility with the working pressure and temperature ranges of the installation. Observe local plumbing codes and safety standards when soldering or brazing; if unsure, consult a qualified installer. Avoid using the fitting with aggressive chemicals or media not suitable for copper.