1-1/2 inch x 1-1/4 inch Copper DWV Reducing 90 Degree Elbow Copper x Copper

1-1/2 inch x 1-1/4 inch Copper DWV Reducing 90° Elbow – For Directional Changes in Drainage Piping

The 1-1/2 inch x 1-1/4 inch Copper DWV Reducing 90° Elbow is designed for use in copper drain-waste-vent (DWV) systems, providing a smooth directional transition between two different pipe diameters. This fitting facilitates a 90-degree turn where reduced branch connections are required, maintaining flow efficiency while minimizing system disruption.

Constructed from lead-free wrought copper, this fitting meets applicable ASTM and NSF standards for low-pressure drainage applications. The socket ends allow for soldered connections in gravity-fed piping systems typically found in residential and commercial buildings.

Technical Benefits

• ✅ Wrought Copper Body – Manufactured to ASTM B75/B88 for consistent wall thickness and form stability.
• ✅ Lead-Free Compliance – Conforms to NSF/ANSI 61 and 372 for potable and non-potable DWV systems.
• ✅ Soldered Socket End Connections – Provides a secure, leak-resistant bond when installed with approved flux and solder.
• ✅ Dimensionally Accurate – Produced in accordance with ASME B16.29 to ensure compatibility across copper DWV piping layouts.
• ✅ Corrosion-Resistant – Maintains performance and material integrity over long service life, even in humid or concealed locations.

Installation Guidelines

Clean and prep tubing and fitting sockets per standard copper installation practices. Apply lead-free solder and flux appropriate for DWV systems. Use heat uniformly to avoid warping or improper flow. This fitting is intended for use in gravity-based drainage systems and should not be used in pressurized supply lines.

Specifications

• Material: Wrought Copper
• Connection Type: Solder Cup x Solder Cup
• Size: 1-1/2 inch x 1-1/4 inch
• Bend Radius: 90 degrees
• Standard Compliance: ASME B16.29, NSF/ANSI 61 & 372, ASTM B75/B88

Applications

Used in horizontal or vertical DWV piping systems where branch-to-main or mainline reductions are required. Commonly installed behind walls, in floor systems, or between fixture drains and stack risers in multi-story residential and commercial construction.

Material Overview

Copper DWV fittings are preferred for their antimicrobial properties, thermal stability, and low coefficient of expansion. These characteristics contribute to long-term performance in waste piping systems subject to temperature fluctuation and condensate exposure.

The 1-1/2 inch x 1-1/4 inch Copper DWV Reducing 90° Elbow is a standard-grade component for gravity drainage assemblies requiring size transition and directional change. It supports clean-out access design, fixture alignment, and system efficiency where soldered copper DWV is specified.