Piping > Setting Up Fittings
Setting Up Fittings
About Fittings
A fitting is a part or an assembly that you add to a piping system to perform specific functions. You can store fittings in libraries so that you can easily retrieve them when you need to insert them in the pipeline. Generally, you can create four types of fittings:
Straight break
Straight continuous
Piping treats a fitting as an assembly component. To be used as a fitting, a model must have the following features:
Entry ports created at the connect points. An entry port is a coordinate system that you create in an assembly, in a part, or at the topmost level of a fitting (that is, at the highest level in a fitting assembly).
Entry ports are coordinate systems that can be referenced by certain piping routing features. It allows you to define contact points, a direction for line routing, setting a start point and the orientation of fittings.
When creating an entry port, keep in mind the following:
The direction of the z-axis determines the direction for routing. In fittings, the z-axis always points out of the fitting and the pipeline enters or exits the fitting parallel to the z-axis.
In a fitting, entry ports are located along the center line the desired penetration distance of the pipe solid determines the offset of the entry port from the face of the fitting. The system trims pipe segments that go into the fitting at the entry ports, although the pipe center line may continue through the pipe fitting.
A defined datum point for the system to use to align the fitting with the center line of connecting pipe segments or at the end of a pipe segment. The alignment point is typically located along the z-axis at the center of symmetry of the fitting.
Example: Tee Fitting with Required References
For fittings with three defined entry ports, the alignment point should lie at the intersection of the z-axes. The z-axis of an entry port must point out of the fitting.
1. Three entry points are defined in this fitting.
2. Datum point is created along the center line.