Viega 28905 MegaPressG tee Smart Connect technology Carbon steel, 2-1/2'' x 2-1/2'' x 1-1/4''

The 28905 is a reducing tee sized 2-1/2 inch x 2-1/2 inch x 1-1/4 inch. The run is 2-1/2 inch on both ends and the branch drops to 1-1/4 inch, so it's the fitting you use to pull a 1-1/4 inch takeoff off a 2-1/2 inch main without adding a separate bushing.

All three openings are press connections, listed as P1 x P2 x P3. No threading, no welding, no soldering; you cut the pipe square, mark insertion depth, and press each socket with the correct jaw or ring for the size. Note that two sockets are 2-1/2 inch and one is 1-1/4 inch, so you need tooling for both sizes on hand.

MegaPressG is Viega's gas-rated carbon steel press line, distinguished by its yellow HNBR sealing element, while standard MegaPress uses a black EPDM seal for non-gas service. The 28905 is a MegaPressG fitting, so it is the one to specify when the run is fuel gas on black iron pipe. Don't mix the two families on the same system.

Yes. MegaPress carbon steel fittings are made to press directly onto IPS black iron pipe, and at 2-1/2 inch x 2-1/2 inch x 1-1/4 inch the 28905 mates with nominal 2-1/2 inch pipe on the run and 1-1/4 inch on the branch. The pipe must be clean, round, and free of deep scoring under the seal area.

Smart Connect is a deliberate feature in the sealing element that lets an unpressed connection leak visibly during pressure test. On a 2-1/2 inch gas main with a 1-1/4 inch branch, that means a missed press shows itself at test rather than after the wall closes. It does not substitute for pressing every joint, and every unpressed fitting still has to be pressed before the system goes into service.

The 28905 body is carbon steel, the same base material as the black iron pipe it presses onto, so it is intended for dry indoor service such as fuel gas piping. Carbon steel will corrode in wet, buried, or condensing environments, so for potable water or exposed damp locations you want a copper or stainless press system instead.

Nothing extra goes in the fitting. The sealing element is already installed in each of the three press sockets, so the 28905 ships ready to press. What you supply is the tooling: a press tool with jaws or rings sized for 2-1/2 inch and for 1-1/4 inch, plus a pipe cutter and a deburring tool.

Part number 28905, a Viega MegaPressG reducing tee in carbon steel, manufactured in Germany. Order by that five digit number to get the 2-1/2 inch x 2-1/2 inch x 1-1/4 inch configuration; adjacent MegaPressG tees carry different numbers for different branch sizes.