Viega 78047 Propress Copper Coupling with Stop 1/2 Inch

Product Description

The VIEGA 78047 is a ProPress press-fit copper coupling with stop, designed for use in plumbing systems where fast, flame-free connections are required. The integrated stop ensures consistent insertion depth, and Smart Connect technology allows visual verification that an unpressed fitting has not been missed during pressure testing. At 1/2 inch by 1/2 inch, this coupling is suited for small-diameter copper tubing runs in both new construction and retrofit applications. Licensed plumbers and pipefitters install this fitting using a compatible press tool, eliminating open-flame soldering in occupied or code-restricted spaces.

This coupling is intended for residential and light commercial plumbing applications involving 1/2 inch copper tubing. It is well suited for supply lines, hydronic piping, and other pressure applications where a secure, repeatable press connection is preferred over soldered joints. The ProPress system is widely used where fire permits are restricted or where job-site conditions make torch work impractical. The with-stop design positions the pipe at the correct depth before pressing, reducing installation error in tight or high-volume work.

Key Features

• Smart Connect technology allows detection of unpressed fittings during system pressure testing
• Integrated pipe stop ensures consistent insertion depth for repeatable press connections
• Copper construction for compatibility with copper tubing systems
• ProPress press-fit connection type eliminates open-flame soldering
• 1/2 inch by 1/2 inch sizing covers the most common residential supply-line diameter

Compatibility

Designed as an OEM-style press-fit replacement and new-installation coupling for 1/2 inch copper tubing plumbing systems using the VIEGA ProPress connection standard.

Installation Notes

Installation requires a VIEGA-compatible press tool with the correct jaw set for 1/2 inch ProPress fittings. Shut off and depressurize the water supply and verify the line is drained before cutting into existing piping. Work must comply with applicable local plumbing codes, which typically reference IPC or UPC standards. After pressing, conduct a system pressure test to confirm all fittings are fully pressed, using the Smart Connect feature to identify any missed connections.

Technical Specifications

• Size: 1/2 inch x 1/2 inch
• Material: Copper
• Connection Type: ProPress
• Application: Plumbing
• Weight: 0.08 pounds

Standard Information

• Brand: VIEGA
• Manufacturer Part Number: 78047