Product Description
The VIEGA 77402 is a ProPress copper tee fitting with Smart Connect technology, designed for press-fit copper piping systems in plumbing applications. The tee connects two 3/4-inch runs to a 1/2-inch branch outlet without soldering, open flame, or flux. Smart Connect technology provides a built-in indicator that allows installers to verify whether a connection has been properly pressed before the system is pressurized. Licensed plumbers and pipefitters install this fitting in both new construction and retrofit work where speed, safety, and joint reliability are priorities.
This fitting is suited for residential and light commercial plumbing systems where copper press connections are specified. It is commonly installed in potable water supply lines, hydronic heating distribution, and general plumbing rough-in where a reducing branch off a 3/4-inch main is needed. The ProPress system eliminates the need for open flame, making it appropriate for installs in occupied spaces, fire-sensitive environments, or locations where hot work permits are restricted.
Key Features
- Smart Connect technology allows visual verification of an unpressed joint before system pressurization
- No soldering, flux, or open flame required — press-fit connection only
- Copper construction for compatibility with standard copper tube systems
- 3/4 inches x 3/4 inches x 1/2 inches reducing tee configuration for branch line transitions
- ProPress connection type for fast, repeatable installation
Compatibility
Designed for use with standard copper tubing in ProPress-compatible plumbing systems. Compatible with VIEGA ProPress tooling and jaws sized for 3/4-inch and 1/2-inch copper connections.
Installation Notes
Installation requires a VIEGA-approved ProPress pressing tool with the correct jaw size for each outlet dimension. Shut off and depressurize the water supply and drain the affected lines before cutting into existing piping. Tube ends must be deburred, cleaned, and fully inserted to the pipe stop before pressing. Follow applicable local plumbing codes and the IPC for copper press-fit joint requirements.
Technical Specifications
-
Material: Copper
-
Connection Type: ProPress (press-fit)
-
Fitting Type: Tee
-
Run Size: 3/4 inches x 3/4 inches
-
Branch Size: 1/2 inches
-
Application: Plumbing
Standard Information
-
Brand: VIEGA
-
Manufacturer Part Number: 77402
