VIEGA ProPress Unions

Viega ProPress union fittings are used to join two sections of copper pipe while allowing the connection to be easily disconnected for future maintenance or system servicing.

Unlike standard press couplings, a union is designed with a separable joint, so parts of the piping system can be taken apart without cutting the pipe.

Key functions of ProPress unions:

  • Connect two straight pipe sections securely
  • Allow easy disconnection for repairs or maintenance
  • Maintain full system flow with minimal restriction
  • Provide a flame-free, press-fit installation
  • Ensure leak-resistant sealing under pressure

As part of the Viega ProPress system, unions install quickly using press tools, combining serviceability with the speed and safety of press technology.

In short: ProPress unions are used when you need a strong, sealed connection that can still be taken apart later if needed.