3/8 inch x 1/2 inch PEX Brass Reducing Insert Adapter Crimp x Copper Male Sweat

Viega BRS 3/8" x 1/2" PEX x Male Sweat Adapter – Precision Brass Transition Fitting

The Viega BRS PEX Adapter 3/8" x 1/2" is a high-performance brass fitting engineered to connect 3/8" PEX tubing to 1/2" nominal copper pipe via a male sweat connection. Manufactured from lead-free brass in compliance with NSF/ANSI 61 and 372, this fitting provides a secure and code-compliant solution for transitioning between piping materials in potable water systems.

Designed for use in both residential and light commercial applications, this adapter offers a reliable method for terminating PEX lines into traditional copper plumbing using standard ASTM B88 soldering techniques. The crimp connection is compatible with ASTM F1807 specifications, supporting copper crimp ring installation with standard PEX crimp tools.

Performance Highlights

• ✅ Dual-Standard Connection – 3/8" ASTM F1807 PEX crimp end and 1/2" nominal copper male sweat outlet
• ✅ Lead-Free Brass – Certified to meet national low-lead regulations for potable systems
• ✅ High Precision Machining – Engineered to maintain proper flow characteristics and reduce the chance of installation error
• ✅ Corrosion Resistant – Suitable for hot and cold water systems, with enhanced resistance to dezincification
• ✅ Code Compliance – Compatible with IPC, UPC, and IRC plumbing codes; meets NSF and ASTM standards

Technical Specifications

• Material: DZR lead-free brass (compliant with NSF 61 & NSF 372)
• Connection Type: 3/8" PEX Crimp x 1/2" Male Sweat
• Standards: ASTM F1807, ASTM B88, NSF/ANSI 61, NSF/ANSI 372
• Applications: Potable water distribution, plumbing retrofits, and hybrid material transitions

Common Use Cases

This adapter is widely used where flexible PEX supply lines terminate at copper manifolds or stub-outs. Ideal for remodels and system upgrades, especially when integrating modern PEX layouts into legacy copper networks.

Note on Installation

For optimal performance, ensure that the PEX tubing is properly deburred and the fitting is crimped using a calibrated tool. The male sweat end must be cleaned and soldered with lead-free solder and flux suitable for potable systems. Always verify temperature and pressure limits based on local code requirements and system demands.

The Viega BRS PEX Adapter 3/8" x 1/2" provides consistent performance in demanding plumbing environments. Designed for professionals seeking durable, code-approved connections with minimal installation time.