Welded fittings are welded on to the piping system where as pressure fitting uses National Pipe Thread (NPT) to connect to the pipe. 90° weld elbows are used to change the direction of fluid or gas flow in pipes by 90 degrees.
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.