Viega 90385 MegaPress reducer Smart Connect technology 316 stainless steel, 2'' x 1-1/2''

P x FTG means one end is a press socket that accepts pipe, and the other end is a fitting (street) end sized to slip into another press fitting's socket. On the Viega 90385 that gives you a 2 inch press end and a 1-1/2 inch FTG end, so you press onto 2 inch pipe and then press the reduced end directly into the next 1-1/2 inch fitting without an extra coupling.

The 90385 handles the size change itself. With the 2 inch press socket on one side and the 1-1/2 inch FTG end on the other, it takes the reduction in a single part, so you are not stacking a full-size fitting plus a reducer. For maintenance stock, note that the ordering number is Viega 90385.

Treat that as a design decision, not a drop-in. The 90385 is a 316 stainless steel body, and joining stainless to carbon steel piping raises galvanic corrosion at the junction, which is normally handled with a dielectric separation per the job spec. Mechanically the press sizes are what the fitting states: 2 inch press and 1-1/2 inch FTG.

Smart Connect is Viega's unpressed-connection feature built into the fitting. It is designed so an unpressed joint leaks under test, letting you find a connection you missed before the system goes into service. It does not replace pressing the joint; it just makes a skipped press show itself during pressure testing.

No. MegaPress is a cold press connection, so the 90385 goes onto prepared pipe with a press tool and jaw sized for the connection, with no threading, no cutting oil, and no hot work. That is the main reason crews pick it for occupied buildings where a welding or brazing permit is the hard part of the job.