Understanding Pressure Network Styles in Civil 3D is essential for effectively visualizing and documenting pressure pipes, fittings, and appurtenances in a water, sewer, or gas distribution system. These styles control the appearance, labels, and behavior of the pressure network components in both 2D and 3D views.

Key Components of Pressure Network Styles
A pressure network consists of several elements, and each has its own styles for controlling the display:

Pressure Pipes: Styles define how pipes are displayed in plan, profile, and 3D views.
Fittings: Include elbows, tees, and reducers; styles control their shape, color, and size in views.
Appurtenances: Represent valves, hydrants, and other accessories; styles define their symbols and 3D geometry.
Labels: Control the annotations for pipes, fittings, and appurtenances.
1. Pressure Pipe Styles
Pressure pipe styles determine the visual representation of pipes in:

Plan View: Pipe thickness, line type, and color.
Profile View: How pipes appear in vertical sections.
3D View: The material and appearance of the pipe in the model.
Editing Pressure Pipe Styles:
Go to Settings > Pipe Network > Pressure Pipe Styles in the Toolspace.
Right-click a style (e.g., "PVC Pipe") and choose Edit.
Adjust the following tabs:
Display: Set how the pipe appears in plan, profile, and 3D views (line type, color, and layers).
3D Settings: Control the material, thickness, and rendering appearance of the pipe.
Size: Specify dimensions for different pipe diameters.
2. Fitting Styles
Fittings include components like elbows, tees, and reducers.

Editing Fitting Styles:
Go to Settings > Pipe Network > Fitting Styles.
Right-click a style (e.g., "Ductile Iron Elbow") and choose Edit.
Adjust these tabs:
Display: Configure how the fitting appears in plan, profile, and 3D.
3D Settings: Control the fitting's shape, material, and level of detail in 3D views.
3. Appurtenance Styles
Appurtenances include valves, hydrants, and other special components.

Editing Appurtenance Styles:
Go to Settings > Pipe Network > Appurtenance Styles.
Right-click a style (e.g., "Gate Valve") and choose Edit.
Key options include:
Plan Symbol: Define the 2D representation of the appurtenance.
Model: Control the 3D appearance, including dimensions and rendering material.
4. Label Styles
Labels are used to annotate pipes, fittings, and appurtenances in plan and profile views.

Editing Label Styles:
Go to Settings > Pipe Network > Pressure Pipe Labels or Fitting Labels.
Customize these settings:
Text Content: Define the information displayed, such as pipe size, material, or pressure class.
Text Placement: Set offsets, rotations, and leader line options.
Profile Labels: Configure how pipes and fittings are annotated in vertical profiles.
5. Assigning Styles to Pressure Network Components
When creating or editing a pressure network, you can assign styles to its components:

Select the pressure network in the drawing.
In the Properties palette or Pressure Netw