2 inch x 1-1/2 inch Copper DWV Reducing Adapter Male x Copper

1-1/2 inch x 2 inch Copper DWV Reducing Adapter – Durable Transitions for Drain, Waste, and Vent Systems

The 1-1/2 inch x 2 inch Copper DWV Reducing Adapter is manufactured to provide a smooth transition between differing pipe diameters in non-pressurized drainage systems. This fitting is intended for soldered connections in copper DWV piping and supports proper flow alignment with minimal turbulence or pressure loss.

Fabricated from lead-free copper, the adapter complies with national plumbing codes and is suitable for installation in horizontal and vertical waste line configurations. The reducer is typically used in remodeling, fixture tie-ins, or expansions where system design calls for a reduction from 2-inch to 1-1/2-inch copper tube.

Performance Features

• ✅ Material: Wrought copper, alloy C12200, compliant with ASTM B75 and B88
• ✅ Connection Type: 1-1/2 inch male sweat x 2 inch female copper socket
• ✅ Application: Copper DWV piping for gravity drainage and venting
• ✅ Design: Full-flow configuration with uniform wall thickness for balanced heat distribution during soldering
• ✅ Code Compliance: Meets ASME B16.29 and NSF/ANSI 61 lead-free certification for plumbing fittings

Installation Notes

Installation requires surface cleaning and proper fluxing prior to soldering. Use of lead-free solder is mandatory per IPC/UPC codes. Ensure axial alignment of connected pipes to minimize mechanical stress and verify joint integrity through pressure or vacuum testing if required by local inspection authority. Not intended for pressurized water supply systems.

Typical Use Cases

This reducing adapter is most commonly used in copper DWV networks for bathroom group waste stacks, kitchen sink tie-ins, or branch lines that require downsizing while maintaining access to the main waste line. Its compact form factor allows it to fit within confined framing spaces, including in-wall or underfloor installations.

Specification Summary

• Nominal Size: 1-1/2 inch x 2 inch
• Material Standard: ASTM B75/B88 lead-free copper
• Fitting Standard: ASME B16.29
• Installation Method: Solder (sweat)

Did You Know?

All copper DWV fittings used in residential and commercial applications are now required to be lead-free under the Reduction of Lead in Drinking Water Act. Though not used in potable water systems, uniform material compliance simplifies inventory and ensures site-wide compatibility with code requirements.

The 1-1/2 inch x 2 inch Copper DWV Reducing Adapter is built to perform in environments where proper drainage flow and code-compliant connections are critical. This fitting delivers reliable transitions with consistent dimensional accuracy, supporting professional-grade installations in both new and retrofit systems.