ASC Engineered Solutions 2X11/2X11/4 BLK MI TEE

It's a reducing tee with 2 inch, 1-1/2 inch and 1-1/4 inch openings. All three ends are female pipe thread (FPT), so it threads onto male-threaded pipe ends at each port. Use it where a 2 inch run needs to step down on the branch or the outlet without adding separate bushings.

Yes. The threads are cut to ASME B1.20.1, which is the standard NPT taper thread spec, so it mates with ordinary threaded black or galvanized steel pipe and NPT nipples. Dope or tape the male threads as usual; the seal is on the thread, not a gasket.

It's UL/FM rated, so it's accepted for fire protection piping work as well as general service. It's a Class 150 standard pattern fitting to ASME B16.3 for both dimensions and pressure rating. Confirm the pressure class against your sprinkler drawing before you set it.

Black malleable iron fittings are the normal choice for natural gas, fuel oil, fire sprinkler and closed-loop steam or hydronic piping. The black finish is a mill coating, not corrosion protection, so for potable water or wet exposed service most specs call for galvanized instead. Match the fitting to the pipe you're running: black fittings on black pipe, galvanized on galvanized.

It's built to ASME B16.3, the dimensional standard for threaded malleable iron fittings, so its center-to-end dimensions match any other B16.3 Class 150 tee in the same 2 x 1-1/2 x 1-1/4 combination. A like-for-like swap in an existing run won't change your takeout lengths.

No. The reduction is cast into the fitting, with the three ports already at 2 inch, 1-1/2 inch and 1-1/4 inch. You save two bushings and the extra leak paths that come with them. All you need is threaded pipe or nipples in those three sizes plus sealant.

The casting meets ASTM A-197, the standard for cupola malleable iron used in threaded pipe fittings. That's what gives it the ductility to take thread engagement and vibration without the brittleness of a plain cast iron fitting.