Viega ProPressG coupling With stop - 16113

Model 16113 is a 1-1/4 inch by 1-1/4 inch coupling, so it joins two 1-1/4 inch copper tube ends. Both ends are press connections (P1 x P2), meaning no threading and no solder.

A coupling with a stop has an internal shoulder in the middle, so each tube end bottoms out at a fixed insertion depth. That makes it the straightforward choice for a new joint where you can slide both tubes in from either side. A stopless (no-stop) coupling leaves the bore open through the middle so it can slide along a fixed length of pipe, which is what you use for a repair in a run that cannot be sprung apart. The 16113 is the version with the stop, in 1-1/4 inch.

ProPressG is Viega's gas-rated press system, identified by its yellow sealing element, and the 16113 coupling belongs to that line. Keep it on the fuel gas side. For potable water or hydronic copper, use the standard ProPress copper coupling in the same 1-1/4 inch size rather than the G version.

Copper. The 16113 body is copper, so it is a like-for-like joint on a copper tube system with no dielectric concern between fitting and pipe.

The coupling ships with its sealing element already in the fitting cup, so nothing else goes into the joint itself. What you do need is a press tool with the correct 1-1/4 inch ProPress jaw or ring and actuator, plus a clean, square, deburred tube end. The coupling does not include tooling.

Both. The 16113 is listed for commercial and residential applications, so the same part covers a multi-family gas riser and a single-family service alteration. It is made in Germany.