Pipe adapters are very similar to Hex Bushings in that they feature both a female thread and a male thread. The difference is Hex Bushings are used to reduce the size of the pipe line and and Pipe Adapters are used when connecting two pipes of different types.
Threaded Flanges
Threaded Flanges
Flanges connect with pipe and fittings to form a piping system for a variety of construction and manufacturing applications. Threaded flanges, also called screwed flanges, include threads inside the flange bore that connect to the external threads on a pipe without welding.