Viega 44355 Pex Crimp to Press Transition Coupling

Product Description

The VIEGA 44355 is a zero-lead bronze transition coupling designed to connect 1/2-inch PEX crimp tubing to 3/4-inch press fittings in a single, compact body. Part of the VIEGA PureFlow system, it incorporates Smart Connect Technology, which provides a visual indicator to verify that the press connection has been fully made before the system is pressurized. The fitting measures 1.811 inches in length and weighs 0.102 pounds. Its bright bronze construction meets zero-lead requirements, making it suitable for potable water applications. Licensed plumbers and PEX installers use this fitting when transitioning between PEX crimp runs and press-fit copper or press-compatible piping within the same system.

This coupling is used in residential and light commercial plumbing systems where a PEX crimp distribution line must connect to a press-fit branch or main. Typical applications include mechanical rooms, under-slab transitions, and retrofit installations where existing press-fit copper meets new PEX rough-in work. The compact form factor allows installation in tight spaces such as wall cavities and joist bays. Because both connection methods are served by a single fitting, it eliminates the need for a separate adapter and reduces the number of potential leak points in the assembly.

Key Features

• Transitions 1/2-inch PEX crimp to 3/4-inch press in one fitting body
• Smart Connect Technology provides visual confirmation of a complete press connection
• Zero-lead bronze construction rated for potable water service
• Bright surface finish on bronze body for corrosion resistance
• Compact dimensions — 1.811 inches long, 1.248 inches wide — fit confined rough-in spaces
• Manufactured in Germany to VIEGA PureFlow dimensional standards

Compatibility

Designed for use within the VIEGA PureFlow system, connecting 1/2-inch PEX crimp tubing on one end to 3/4-inch VIEGA press-compatible fittings or piping on the other end. Verify press tool jaw compatibility with the VIEGA press profile before installation.

Installation Notes

Installation should be performed by a licensed plumber in accordance with local plumbing codes and applicable sections of the International Plumbing Code (IPC). Shut off the water supply and depressurize the line before working on any fitting. The crimp end requires a calibrated PEX crimp tool and appropriate crimp rings; the press end requires a VIEGA-compatible press tool. Inspect the Smart Connect indicator after pressing to confirm a complete seal before restoring system pressure.

Technical Specifications

• Connection Type: 1/2 inches PEX Crimp x 3/4 inches Press
• Material: Bronze (Zero Lead)
• Surface Finish: Bright
• Length: 1.811 inches
• Width: 1.248 inches
• Height: 1.248 inches
• Net Weight: 0.102 pounds
• Country of Origin: Germany

Standard Information

• Brand: VIEGA
• Manufacturer Part Number: 44355