1 inch x 3/4 inch PEX Brass Reducing Insert Adapter Crimp x Male

PEX Crimp x Male NPT Adapter – 1 inch x 3/4 inch Brass Fitting for Potable Water Systems

The 1 inch PEX Crimp x 3/4 inch Male NPT Adapter (Part No. 46361) is a lead-free brass fitting designed for transitioning between PEX tubing and threaded metal connections in potable water systems. This fitting supports ASTM F1807 crimp installation and is compatible with copper crimp rings or stainless steel clamp systems, making it a versatile solution for both new construction and retrofit applications.

Manufactured from dezincification-resistant (DZR) brass and compliant with NSF/ANSI 61 and 372 standards, this adapter is approved for use in drinking water applications and meets current U.S. low-lead requirements. It is engineered to provide a mechanically secure and corrosion-resistant connection under standard operating pressures and temperatures.

Technical Specifications

• ✅ Material: Lead-free DZR brass (meets NSF 61/372 and ANSI standards)
• ✅ Connection A: 1 inch PEX Crimp (ASTM F1807)
• ✅ Connection B: 3/4 inch Male NPT (ANSI B1.20.1)
• ✅ Operating Pressure: Up to 200 PSI at 73°F
• ✅ Temperature Range: 33°F to 200°F nominal use

Application and Usage

Commonly used to join cross-linked polyethylene (PEX) tubing to threaded valves, fixtures, or metallic system components. This adapter is suitable for:

• ✅ Residential and commercial potable water distribution
• ✅ Hot and cold water supply lines
• ✅ Hydronic heating systems (where approved)
• ✅ Mechanical room piping assemblies and manifolds

Installation Notes

This adapter must be installed using industry-approved crimp tools per ASTM F1807 standards. Ensure proper alignment and ring placement during installation. For threaded connections, use an appropriate thread sealant or PTFE tape rated for potable systems to ensure a leak-free seal. Avoid overtightening to preserve thread integrity and system pressure ratings.

Performance Benefits

• ✅ Secure Mechanical Bond: Crimp connection ensures consistent joint integrity
• ✅ Thermal & Chemical Resistance: Suitable for both hot and cold water lines with consistent exposure to domestic conditions
• ✅ Corrosion-Resistant Design: Brass construction minimizes degradation in high-moisture and high-chlorine environments
• ✅ Lead-Free Compliance: Certified for use in systems requiring lead-free materials per federal and state mandates

Regulatory Compliance

Certified to NSF 61 & 372 for potable water use. Compatible with systems governed by IPC, UPC, and local code requirements where ASTM F1807 fittings are approved.

The PEX Crimp x Male NPT 1 inch x 3/4 inch Adapter is a durable, compliant, and code-approved solution for contractors requiring a reliable connection between PEX tubing and threaded components in pressure-rated water systems.