ASC Engineered Solutions 1X1/4 BLK MI HEX BUSHING

It reduces 1 inch down to 1/4 inch. The 1 inch end is male pipe thread (MPT) and screws into a 1 inch female port or fitting; the 1/4 inch end is female pipe thread (FPT) and takes a 1/4 inch male nipple or fitting.

Yes. The threads are cut to ASME B1.20.1, which is standard NPT taper pipe thread, so it mates with any standard black iron or steel pipe and fitting of the same size. Use pipe dope or PTFE tape on the taper threads to seal the joint.

Black malleable iron is intended for gas, air, steam and non-potable service, not for potable water, where the uncoated iron corrodes. For water supply, use a galvanized bushing or a brass fitting instead. Black fittings like this one are standard on natural gas and propane piping and on fire sprinkler work.

Yes, it carries UL/FM recognition, which is what a fire protection contractor needs to use it in a listed sprinkler system. The fitting is standard (STD) strength class and is dimensioned and pressure rated to ASME B16.3.

It is made to ASME B16.3, the dimensional standard for malleable iron threaded fittings, so face-to-end and thread engagement match any other B16.3 Class 150 standard fitting regardless of brand. The casting itself is to ASTM A-197 malleable iron.

A hex bushing has male threads on the large end and female threads on the small end, so it seats inside an existing female port and reduces it in one short piece. A reducing coupling is female on both ends and needs a male nipple on each side. Use the bushing when you are stepping down a tapping or a fitting outlet; use the coupling when you are joining two runs of pipe. The hex flats on this one let you drive it with a wrench.

Each bushing weighs 0.18 lbs and is sold as the single fitting, model 318906849. No gasket or sealant is included, so add pipe joint compound or thread tape for the install.