Viega 46644 Pureflow Crimp Adapter 3/4 Inch Brass

Product Description

The VIEGA 46644 is a 3/4-inch PureFlow crimp adapter designed for PEX plumbing systems. It transitions between crimp-style PEX connections and standard fitting ends, allowing technicians to integrate PEX tubing runs with threaded or push-fit components in a single fitting. Constructed from domestic brass, this adapter delivers reliable corrosion resistance and is suited for potable water and hydronic distribution applications. Licensed plumbers and pipefitters install this fitting as part of residential and light commercial PEX installations where a secure, leak-free crimp connection is required.

This adapter is used in 3/4-inch PureFlow PEX plumbing systems, including domestic hot and cold water distribution, radiant heating supply and return lines, and manifold branch connections. The crimp end accepts a standard crimp ring compressed with a PEX crimp tool, while the fitting end connects to compatible downstream components. It is appropriate for both new construction rough-in and retrofit applications where existing piping is being converted to or extended with PEX.

Key Features

• 3/4-inch nominal size for standard PureFlow PEX plumbing runs
• Crimp x fitting end style for versatile connection transitions
• Domestic brass construction for corrosion resistance in potable water service
• Compatible with standard PEX crimp rings and crimp tools
• Suitable for both hot and cold water distribution and hydronic systems

Compatibility

Designed as an OEM-style replacement and new-installation fitting for 3/4-inch VIEGA PureFlow PEX crimp plumbing systems.

Installation Notes

Installation should be performed by a licensed plumber in accordance with applicable local plumbing codes and ASTM F1807 crimp connection standards. Shut off the water supply and depressurize the line before cutting into existing piping. Use a properly calibrated PEX crimp tool sized for 3/4-inch crimp rings to ensure a leak-free connection. Do not over-compress the crimp ring or substitute non-rated ring materials.

Technical Specifications

• Nominal Size: 3/4 inch
• Connection Type: Crimp x Fitting
• Material: Brass
• Origin: Domestic

Standard Information

• Brand: VIEGA
• Manufacturer Part Number: 46644