Here’s an overview of some common types of fittings:

Elbow

Elbows are used to change the direction of flow in a pipeline, typically at a 90-degree or 45-degree angle. They come in various configurations, such as long radius (standard) and short radius, depending on the application and space constraints.

Tee

Tees are used to create branch connections in a pipeline, allowing flow in two directions perpendicular to the main line. They come in equal tee and reducing tee configurations, depending on whether the branch outlet size is the same as or smaller than the mainline size.

Reducer

Reducers are used to connect pipe of different diameters, allowing for a smooth transition between sizes and maintaining the flow rate.
They come in concentric and eccentric configurations, depending on whether the centerlines of the pipe is aligned or offset.

Coupling

Couplings are used to join two pipe of the same size, providing a leak-proof connection. They come in various types, including slip-on or snap-on, depending on the installation method and pipe material.

Cross

Cross fittings are similar to tees but have four outlets arranged perpendicular to the mainline, allowing flow in three directions. They are used in applications requiring multiple branch connections.

Cap

Caps are used to close off the end of a pipe, providing a sealed termination point. They are commonly used for temporary closures, testing, or maintenance purposes.