1 inch PEX Brass Insert Adapter PEX x Copper

1" PEX x 1" Copper Adapter – Lead-Free Brass for High-Integrity Transitions

The 1" PEX x 1" Copper Adapter provides a critical transition between cross-linked polyethylene (PEX) tubing and rigid copper piping. Engineered from lead-free brass and manufactured to meet current safety and performance standards, this fitting is ideal for potable water systems and residential hydronic distribution.

Key Advantages

• ✔️ Certified Lead-Free Brass – Cast from dezincification-resistant (DZR) brass alloys that meet NSF/ANSI 61 and 372 standards for drinking water safety.
• ✔️ PEX Crimp Compatibility – Designed for ASTM F1807 or F2159 crimp systems using copper crimp rings or stainless steel clamps (ASTM F2098).
• ✔️ Copper Sweat Connection – Features a solder cup end for standard copper-to-copper sweating per ASTM B88.
• ✔️ Corrosion Resistance – Durable enough for long-term performance in both hot and cold water systems, reducing the risk of early degradation.

Technical Specifications

• Material: Lead-free brass (DZR)
• PEX Connection: 1" barb (ASTM F1807 compatible)
• Copper Connection: 1" sweat (ASTM B88 compatible)
• Certification: NSF 61, NSF 372, and compliant with UPC/IPC plumbing codes
• Operating Pressure: Up to 200 PSI at 73°F
• Operating Temperature: Up to 200°F (continuous rating for hydronic or domestic use)

Common Applications

This adapter is commonly used in domestic water distribution systems where a transition from copper pipe to PEX tubing is required. It is frequently specified in retrofits, kitchen and bath renovations, and new residential construction where hybrid piping systems are employed. Compatible with both Type L and Type M copper lines.

Installation Considerations

For the PEX side, use a crimp or clamp tool approved for ASTM-compliant ring systems. For the copper end, ensure the fitting and pipe are properly cleaned and fluxed before sweating. Always follow local code requirements and manufacturer guidelines to maintain code compliance and avoid thermal damage during soldering.

Did You Know?

As of 2014, federal legislation requires all potable water fittings to contain no more than 0.25% lead. This adapter is compliant in all 50 U.S. states for use in drinking water systems.

The 1" PEX x 1" Copper Adapter is a field-tested solution for high-performance transitions between copper and PEX systems. With lead-free construction, pressure integrity, and reliable compatibility, it remains a staple for professionals installing hybrid residential plumbing networks.