2 inch x 1-1/2 inch Copper Reducing Coupling With Stop Copper x Copper

2" x 1-1/2" Copper Reducing Coupling – CxC Solder Joint for DWV and Potable Water Systems

The 2" x 1-1/2" Copper Reducing Coupling is a solder-type fitting used to connect copper tubing of different diameters in plumbing systems. Designed for use in water distribution, hydronic heating, and DWV applications, this fitting ensures a reliable transition between 2" and 1-1/2" copper pipe sizes with minimal pressure loss.

Manufactured from lead-free wrought copper, this coupling is compliant with applicable ASTM, ASME, and NSF standards. It features solder cup ends on both sides for permanent, flame-joined connections in systems requiring high durability and code compliance.

Product Features

• ✅ Material: Wrought copper (typically C12200) – lead-free per NSF/ANSI 61 and 372
• ✅ Connection Type: Copper socket x copper socket (CxC), suitable for soldered joints
• ✅ Nominal Sizes: 2" inlet x 1-1/2" outlet
• ✅ Standards: Manufactured to ASME B16.22 and ASTM B75 specifications
• ✅ Pressure Application: Suitable for residential, commercial, and mechanical systems within allowable soldered copper system ratings

Installation Guidelines

Use only approved flux and lead-free solder per local and national plumbing code. Ensure tubing ends and fitting sockets are cleaned and properly prepared. Heat should be applied uniformly until solder flows fully into the joint via capillary action. Avoid excessive heat exposure which may compromise pipe integrity or weaken adjacent joints.

Use Cases

This reducing coupling is commonly installed in potable water distribution lines, hydronic heating loops, and copper DWV systems where a step-down in pipe size is required. It is often used in renovation, service upgrade, or fixture branch transitions in both horizontal and vertical piping layouts.

Regulatory Compliance

Compliant with low-lead mandates under the U.S. Safe Drinking Water Act and meets requirements for NSF/ANSI 61 (drinking water system components) and NSF/ANSI 372 (lead content). Also conforms to UPC and IPC plumbing code standards.

The 2" x 1-1/2" Copper Reducing Coupling provides a secure, long-lasting solution for joining dissimilar pipe sizes in soldered copper systems. Built for performance in code-regulated potable water and mechanical piping installations.