Viega 78052 Propress Copper Coupling with Stop 3/4 Inch

Product Description

The VIEGA 78052 is a 3/4-inch ProPress copper coupling with stop, designed for fast, flame-free pipe joining in professional plumbing and hydronic heating systems. The integrated stop allows for consistent pipe insertion depth without measuring, reducing installation errors on the job. Smart Connect technology features a leak indicator that signals an unpressed fitting during pressure testing, helping technicians identify incomplete connections before the system goes into service. This fitting is installed by licensed plumbers and pipefitters working on copper water and heating lines.

The 78052 is suited for residential and light commercial applications including domestic water distribution and hydronic radiant or baseboard heating systems. The ProPress connection method eliminates open flame, making it a practical choice in occupied buildings or areas where hot work permits are restricted. The 3/4-inch size fits standard Type K, L, and M copper tubing of the same nominal diameter.

Key Features

• Integrated pipe stop ensures consistent insertion depth for reliable press connections
• Smart Connect technology provides visual leak indication for unpressed fittings during pressure testing
• Flame-free ProPress installation eliminates the need for soldering or hot work permits
• Copper construction suitable for potable water and heating system service
• 3/4-inch by 3/4-inch straight coupling configuration for in-line pipe joining

Compatibility

Designed for use with 3/4-inch copper tubing in plumbing and heating applications. Compatible with the Viega ProPress system and requires a Viega-approved pressing tool with the correct jaw or ring for 3/4-inch fittings.

Installation Notes

Installation must be performed with a Viega-compatible pressing tool; do not attempt to solder or mechanically compress this fitting outside of the ProPress method. Shut off and depressurize the water or heating system completely before cutting into any existing piping. After pressing, conduct a pressure test and visually inspect each fitting for the Smart Connect indicator before restoring system pressure. Work should comply with applicable local plumbing codes and ASTM standards for copper piping systems.

Technical Specifications

• Size: 3/4 inches x 3/4 inches
• Material: Copper
• Connection Type: ProPress
• Application: Plumbing, Heating

Standard Information

• Brand: VIEGA
• Manufacturer Part Number: 78052