Viega 79300 Pipe Adapter 1/2 Inch Press X Fnpt Bronze

Product Description

The VIEGA 79300 is a 1/2-inch pipe adapter designed to transition between a press-style connection and a female NPT threaded fitting. Manufactured from bronze, this adapter is part of the ProPress system, which allows plumbers to make leak-tight joints without open flame. The press end creates a permanent mechanical connection using a pressing tool, while the FNPT end accepts standard threaded pipe or fittings. It is a practical solution when converting an existing threaded system to press or when a threaded component must be incorporated into a press-run installation.

This adapter is suited for residential and light commercial plumbing applications where copper press systems are being installed or extended. It is commonly used when connecting valves, gauges, or other threaded components into a ProPress copper line. The 1/2-inch nominal size fits standard half-inch copper tubing on the press end and 1/2-inch NPT-threaded components on the female threaded end. Licensed plumbers installing hydronic heating, domestic water, or similar systems will encounter this fitting as a transition point between press and threaded assemblies.

Key Features

• 1/2-inch nominal size fits standard half-inch copper tubing
• Press x FNPT end configuration transitions between press and threaded systems
• Bronze construction provides corrosion resistance in water service applications
• Press end eliminates open flame, reducing fire risk and speeding up installation
• Compatible with standard pressing tools used in press-fitting systems

Compatibility

Designed as an OEM-style fitting for use in 1/2-inch copper press piping systems where a transition to female NPT threaded connections is required.

Installation Notes

Installation should be performed by a licensed plumber in accordance with applicable local plumbing codes and IPC guidelines. Shut off and depressurize the water supply before cutting into any existing line. The press end requires a compatible pressing tool with the correct jaw or ring for ProPress-style fittings. Do not attempt to re-press a joint that has already been fully pressed, as this can compromise the connection integrity.

Technical Specifications

• Nominal Size: 1/2 inch
• End Style: Press x FNPT
• Material: Bronze

Standard Information

• Brand: VIEGA
• Manufacturer Part Number: 79300