Viega 98530 MegaPress flange Smart Connect technology 316 stainless steel, 3''

The Viega 98530 MegaPress flange is a 3 inch fitting. It presses onto 3 inch pipe on the press end and terminates in a flange face on the other, so it is the transition you use where a pressed carbon or stainless line has to land on a flanged valve, pump, or piece of equipment.

It is 316 stainless steel. That matters on the job because 316 holds up in chloride-bearing and washdown environments better than 304 or carbon fittings, which is why it gets specified for marine, food plant, and chemical service lines rather than plain mechanical rooms.

Yes, the 98530 includes Viega's Smart Connect technology. An unpressed connection leaks deliberately during pressure test so the installer finds it before the system is buttoned up and the ceiling is closed. On a 3 inch stainless line that is the difference between catching a missed press at test and chasing it after insulation goes on.

The 98530 is supplied as the flange fitting itself. Bolts, nuts, and the flange gasket are separate items matched to the mating flange you are bolting to, so order those alongside it. You also need a Viega press tool with the correct 3 inch MegaPress jaw or ring to make the press connection.

A press flange is the choice where you want a flanged takeoff without hot work. No welding permit, no fire watch, no threading a 3 inch stainless nipple in place. Welding still wins where a job spec demands welded joints or where you need a fully custom spool; threaded is practical only on smaller sizes. For occupied buildings and retrofit tie-ins to pumps and valves, the pressed 316 stainless flange gets the connection made in minutes.

The 98530 weighs 10.383 lbs. At that weight on a 3 inch line it is a two-hand lift and generally wants the pipe supported or clamped before pressing, since the fitting plus the press jaw hanging off a 3 inch run is more than you want to hold by hand overhead.