1-1/2 inch Copper DWV Reducing Adapter Fitting x Female

1-1/2” x 1” Copper DWV Reducing Adapter – Code-Compliant Transition for Drainage Systems

The 1-1/2” x 1” Copper DWV Reducing Adapter is engineered for use in non-pressurized drain, waste, and vent (DWV) systems. This fitting allows for a smooth transition between differing copper pipe sizes while maintaining flow efficiency and system integrity. Constructed from lead-free wrought copper, the adapter meets national code requirements for safety and material standards.

This fitting is designed for soldered joints and supports proper slope and alignment in horizontal drainage lines. Its uniform dimensions and clean copper surface help promote strong, reliable soldered connections that resist joint failure in long-term service conditions.

Key Product Features

• ✅ Lead-Free Copper: Complies with ASTM B75 and NSF/ANSI 61 requirements for use in residential and commercial DWV systems.
• ✅ Solder Joint Connections: Designed for sweat installation using lead-free solder and approved flux for a leak-resistant bond.
• ✅ Compact Profile: Allows space-saving installation behind walls or in confined service cavities.
• ✅ Uniform Wall Thickness: Supports consistent heating and solder penetration across the entire connection surface.
• ✅ ASME B16.29 Compliant: Manufactured to meet dimensional standards for copper drainage fittings.

Installation Considerations

Ensure pipe ends are cleaned and reamed to remove oxidation or burrs. Apply appropriate flux to both mating surfaces and heat evenly to achieve full solder fill. Observe proper DWV pipe pitch to maintain code-compliant drainage flow. Suitable for use in horizontal and vertical DWV runs where pipe diameter changes are required.

Specification Overview

• Nominal Size: 1-1/2” x 1”
• Material: C12200 lead-free copper
• Type: Reducing adapter – male x female socket
• Fitting Standard: ASME B16.29
• Application: Copper DWV (drain, waste, vent) systems

Typical Applications

This reducing adapter is used in branch lines or fixture tie-ins where pipe sizing adjustments are required. Common locations include wall cavities, floor joist bays, or transitions from main drainage stacks to branch piping in residential or light commercial plumbing installations.

Did You Know?

Lead-free copper fittings are federally mandated for DWV systems to prevent contamination and support long-term system sustainability. Additionally, copper’s inherent antimicrobial properties provide added protection in sanitary plumbing environments.

Use the 1-1/2” x 1” Copper DWV Reducing Adapter to ensure proper flow transitions and long-lasting system reliability. Its precision manufacturing and code compliance make it a preferred choice for professional drainage applications.