2 inch x 1-1/2 inch Copper Reducing Coupling Fitting x Copper

2” x 1-1/2” Copper Reducing Coupling – Wrot Copper Fitting for DWV and Pressure Systems

The 2” x 1-1/2” Copper Reducing Coupling is a straight, socket-type fitting designed to transition between two different nominal copper tube sizes. Commonly used in water supply and drainage systems, it supports uniform flow while maintaining mechanical integrity across the joint.

Fabricated from lead-free wrot copper, this coupling is suitable for use in both residential and commercial piping applications, including potable water, HVAC, and DWV (drain, waste, vent) systems. Its design complies with dimensional tolerances set by ASME and ASTM standards for copper fittings.

Key Performance Features

• ✅ Material: Wrot copper meeting ASTM B75 or B88 standards (lead-free)
• ✅ Configuration: Reducing coupling – 2 inch nominal size x 1-1/2 inch nominal size
• ✅ End Connections: Cup x Cup (socket ends for soldered or brazed joints)
• ✅ Pressure Rating: Rated for use in pressure and non-pressure systems, based on installation method and tubing type
• ✅ Code Compliance: Conforms to ASME B16.22, NSF/ANSI 61/372 for potable water systems

Installation Considerations

For optimal performance, joints should be prepared using proper cleaning tools, flux application, and heat sources. Tubing must be fully inserted into the sockets, and soldering or brazing should be completed using approved materials in accordance with local codes. Ensure support spacing and thermal expansion allowances meet system requirements.

Typical Applications

This reducing coupling is used in hot and cold potable water distribution, hydronic heating loops, and low-pressure DWV transitions. It is ideal for vertical or horizontal runs where a reduction in pipe diameter is needed to accommodate fixture branches or sectional changes in system design.

Standards and Regulatory Notes

Lead-free copper fittings are required for all potable water systems under federal Safe Drinking Water Act (SDWA) amendments. This fitting meets those requirements and may be used in projects governed by IPC, UPC, and local plumbing codes.

The 2” x 1-1/2” Copper Reducing Coupling delivers consistent fit and long-term durability in code-compliant copper piping assemblies. Its seamless construction and precision sizing support leak-resistant soldered joints in pressure-rated and gravity flow applications.