1/2 inch x 3/8 inch Copper Reducing Adapter Male x Copper

Lead-Free Copper Reducing Adapter – Solder Joint, C x MPT

The Copper Reducing Adapter is a wrot copper fitting used to transition between copper tubing and smaller-sized male-threaded pipe. This adapter features a female solder cup on the large end and a male National Pipe Thread (NPT) on the reduced end. It is designed for potable water, HVAC, and hydronic heating systems where dimensional transitions and code compliance are required.

Manufactured from lead-free copper alloy in compliance with ASTM B75/B88 and certified under NSF/ANSI 61 and 372, this fitting is approved for use in pressurized potable water and mechanical piping systems. It is suitable for both new construction and retrofit installations across residential, commercial, and institutional applications.

Key Performance Features

• ✅ Material: Lead-free wrot copper (≤0.25% Pb), suitable for potable water service
• ✅ Connection Type: Female solder cup x Male NPT
• ✅ Manufacturing Standards: ASME B16.22, ASTM B75, ASTM B88
• ✅ Pressure Rating: 200 PSI at 250°F when properly installed
• ✅ Corrosion Resistance: Copper alloy construction provides resistance to pitting, scale buildup, and chemical corrosion

Installation Guidelines

Clean the solder cup and copper tube using emery cloth or a fitting brush. Apply approved lead-free flux, insert the pipe fully, and heat the joint until solder flows evenly. Use PTFE tape or approved thread sealant on the male threaded connection. Allow proper cooling before pressurizing. Always follow local codes and manufacturer guidelines for soldered and threaded connections.

Common Use Cases

Typically used to reduce from copper tubing to a smaller male-threaded outlet for connection to valves, meters, or other threaded components. Common in domestic water distribution, hydronic loop terminations, and mechanical system transitions where solder-to-thread connections are required.

Compliance and Certification

This product is certified lead-free and meets federal Safe Drinking Water Act (SDWA) regulations. It is approved for use in all jurisdictions requiring lead-free materials and compliant with NSF/ANSI 61 and 372 for potable water systems.

Technical Specifications

• Material: Lead-Free Wrot Copper
• Connection Type: Copper Cup x Male NPT
• Certifications: NSF/ANSI 61 & 372, ASME B16.22
• Applications: Potable water, hydronic heating, mechanical piping

The Copper Reducing Adapter provides a code-compliant, pressure-rated solution for connecting soldered copper tube to threaded components in professional-grade piping systems. Its lead-free construction and dimensional accuracy ensure safe and reliable performance across a range of plumbing applications.