Fittings

A pipe fitting is defined as a part used in a piping system, for changing direction, branching or for change of pipe diameter, and which is mechanically joined to the system. There are many different types of fittings, and they are the same in all sizes and schedules as the pipe.

Fittings are divided into three groups.

• Buttweld (BW) fittings whose dimensions, dimensional tolerances are defined in the ASME B16.9 standards. Light-weight corrosion resistant fittings are made to MSS SP43.
• Forged fittings the term "forged" refers to the process of shaping the metal while it is still hot, rather than cutting or machining it after it has cooled. Below are the two types,
• Socket Weld (SW) fittings Class 3000, 6000, 9000 are defined in the ASME B16.11.
• Threaded (THD), screwed fittings Class 2000, 3000, 6000 are defined in the ASME B16.11.

• Ferrule Fittings are a type of connector used to join two or more tubes or pipes made of the same or different materials together. A ferrule is a metal ring or band that is crimped onto the ends of the tubes or pipes to create a secure and leak-tight connection.