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

1-1/2 inch x 1 inch Copper Reducing Adapter – Wrot Copper for DWV and Pressure Applications

The 1-1/2 inch x 1 inch Copper Reducing Adapter is designed to connect larger-diameter copper tubing to a smaller size with consistent performance. Fabricated from lead-free wrot copper, this fitting is suitable for both potable water systems and copper DWV piping layouts. It enables a smooth transition where a reduction in line size is required, supporting clean flow and maintaining system integrity.

This adapter features a male sweat (cup) connection on one end and a female socket on the other, ensuring compatibility with standard ASTM B88 Type L and M copper tubing. It meets UPC and IPC plumbing code standards and is compliant with lead-free legislation in all U.S. jurisdictions under the Safe Drinking Water Act.

Application and Performance Features

• Type: Reducing Adapter (1-1/2 inch x 1 inch)
• Material: Wrot copper, lead-free alloy
• Connection Ends: Sweat (cup) x Sweat
• Usage: Designed for use in potable water, hydronic heating, and DWV systems
• Compliance: NSF/ANSI 61 and NSF 372 certified; meets ASTM B75/B88

Installation Guidelines

Proper installation requires cleaning and fluxing both pipe and fitting surfaces, followed by soldering with a torch using lead-free solder. Heat should be evenly applied to ensure full penetration at the joint. Adapters must be installed with proper support and spacing to prevent stress on the joint due to thermal expansion or system pressure variations.

Typical Use Cases

This reducing adapter is typically used in retrofit or mixed-diameter copper installations, such as downsizing supply branches from 1-1/2 inch mains to 1 inch fixtures or appliance feeds. It's also commonly found in hydronic heating loops, backflow prevention setups, and equipment manifold tie-ins.

Code and Material Note

Wrot copper fittings are corrosion-resistant and suitable for systems operating under a range of pressures and temperatures. Their chemical composition ensures stability under varying water quality conditions and meets federal lead-free guidelines for any contact with drinking water.

For professional-grade pipe size transitions in copper systems, the 1-1/2 inch x 1 inch Copper Reducing Adapter provides long-term reliability, high pressure performance, and compliance with all major plumbing standards.