Viega 77472 ProPress tee Smart Connect technology Copper, 1-1/2'' x 1-1/2'' x 1-1/4''

The Viega 77472 is a reducing copper press tee sized 1-1/2 inch x 1-1/2 inch x 1-1/4 inch. The run is 1-1/2 inch on both ends and the branch reduces to 1-1/4 inch, so it drops a 1-1/4 inch takeoff off a 1-1/2 inch main without a separate bushing. All three ends are press connections (P1 x P2 x P3), not sweat or threaded.

Yes, that is the point of it. The 77472 is a copper press fitting with three press sockets, so you cut the tube, deburr, mark insertion depth, slide the fitting on and press with a ProPress jaw. No torch, no flux, no solder, which is what makes it usable in occupied buildings and tenant spaces where hot work permits are a problem.

Plan on roughly 4.567 inches across the widest dimension, 3.217 inches on height and 2.122 inches on length for the 77472. Press fittings also need jaw clearance around the socket, so the governing constraint in a tight bay is usually room to get the press tool squarely on each socket rather than the fitting body itself.

Smart Connect is a feature of the sealing element that lets an unpressed joint weep during pressure testing, so a connection you missed shows itself before the system goes into service. It does not change the install sequence on the 77472, but it does mean you should pressure test and walk the run looking for leaks rather than assuming every socket got crimped.

Viega part number 77472. That is the ProPress copper tee in 1-1/2 x 1-1/2 x 1-1/4. If your branch is actually 1-1/2 inch rather than 1-1/4, you need the full-size tee instead, not this one, so confirm the branch tube size before ordering.

No. The 77472 is a copper press fitting with press sockets on all three ends, sized for copper tube. PEX and CPVC need their own fitting systems. If you are transitioning from copper to another material, do it with a dedicated transition fitting rather than trying to press plastic tube into this tee.

It is a copper-bodied fitting, so it is the same base metal as the copper tube it joins. For a copper potable or hydronic system that keeps the joint material consistent and avoids the dissimilar-metal pairing you get when you mix copper tube with other alloys at a transition.

Made in Germany. That matters on public and institutional jobs where country of origin has to be documented in the submittal package, so you can state it up front instead of chasing the vendor for it.

The 77472 weighs 0.89 lbs. Light enough that it is the tube and water weight driving your hanger spacing, not the fitting, but it is worth counting when you are staging a large pallet of fittings for a riser package.