ASC Engineered Solutions 1X1/4 GALV MI REDUCER

It steps 1 inch down to 1/4 inch, with female pipe threads on both ends. Both openings are FPT, so it threads onto male pipe ends or male-threaded nipples, not onto female fittings. Threads are cut to ASME B1.20.1 (NPT), so it mates with standard tapered pipe thread.

Yes, this 1 x 1/4 galvanized reducer carries UL/FM recognition, which is what a sprinkler contractor needs to have it accepted on a fire protection system. It is a standard (STD) class fitting dimensioned and pressure rated to ASME B16.3.

Galvanized malleable iron is the traditional choice for water service, and this one is hot dip galvanized to ASTM A-153 over ASTM A-197 malleable iron, which is what gives it corrosion resistance on wet service. Use the black iron version instead for gas. On the drinking water side, follow whatever your local code requires for the system you are working on.

It is built to ASME B16.3, the dimensional standard for threaded malleable iron fittings, so laying lengths and thread engagement line up with any other B16.3 galvanized fitting regardless of who made it. That matters when you are cutting a nipple to a fixed face-to-face measurement.

It is a standard (STD) class fitting rated per ASME B16.3. Under that standard the working pressure depends on class and size, so if your system runs above standard class pressure you need an extra heavy (XH, Class 300) fitting instead of this one.

The manufacturer part number is 311087407 and the fitting weighs 0.37 lbs, which is useful if you are pricing freight on a bulk MRO order or building a kit weight for a service truck.

Yes. The threads are NPT per ASME B1.20.1, a tapered thread that seals metal to metal on the flanks, and standard practice is pipe dope or PTFE tape on the male threads going into it. Nothing is supplied with the fitting.