Types of pipe fittings


Pipe fitting is a small part of the piping system that is used to join two or more pipes together.
pipe fitting parts


Gender of fittings

Female fitting

a fitting with internal threads that accepts the outside of a pipe:

Male fitting

a fitting with external threads that is inserted into a pipe:

List of fittings

Coupling

Coupling
a pipe fitting that is used to join two pipes together in a direct line:
  •  full coupling
  • half coupling

Elbow (also 90° bend)

Elbow
a pipe fitting that is bent at a 90 or 45-degree angle and used to join two pipes together:
  • 90 deg elbow
  • 45 deg elbow

Tee

Tee
a pipe fitting with three branches (T-shaped) that is used to join three pipes together:

Cross

Cross
a 4-way fitting that is used to join four pipes together:

Reducer

Reducer
a pipe fitting that is used to join two pipes of different size together:

Nipple

Nipple
a short piece of pipe that has threads on both ends and is used to join two fittings together:
  • Hexagon nipple
  • parallel nipple
  • welding nipple

Union

Union
a pipe fitting that allows quick connection and disconnection of two pipes without rotating either pipe.

Barb

Barb
a fitting that is used to join pipes to hose:

Cap

Cap
a pipe fitting that is used to close the end of a pipe:

Valve

Valve
a device that is used to control the flow of any fluid:
gate valve
plug valve