Route a sloped pipe run - Intergraph Smart 3D - Administration

1. Click Route Pipe on the vertical toolbar.

2. Select the run starting point in an elevation view.

3. On the New Pipe Run dialog box, select the parent Pipeline.

4. In the Name box, type a name for the pipe run. If you do not type a name, the software automatically generates a name.

5. Select the Minimum Slope box, and then type the slope for the pipe run. For example, 2 deg or 0.5in / 1.0ft.

6. Click OK to close the New Pipe Run dialog box.

7. In the Specify Slope Direction dialog box, specify if you are routing from the high point or the low point of the pipe run.

8. Click OK in the Specify Slope Direction dialog box.

9. Select points to define the route of your pipe run.

   You can use PinPoint, Point Along, and the SmartSketch 3D relationship indicators when defining your pipe run.

10. Select the ending point of the pipe run. Right-click to end routing.

• You can unlock the slope on the ribbon to temporarily override the slope. For example, you will need to unlock the slope to model a vertical drop in the pipe run.

• If the piping specification that you selected has service limits defined, you must define at least one temperature value and one pressure value for the pipe run. Do this by selecting Temperature and Pressure from the Category option.

Adjust the slope to keep the pipe run within the slope tolerance

When you move sloped pipe run components, connected components can move out of the minimum slope tolerance. This often happens when you move a loop or change the slope tolerance on an existing pipe run. To adjust the components so that they are within the minimum slope tolerance, use the following procedure:

1. Select the turn feature (typically an elbow) to move. For example, you may need to move an elbow so that the attached pipe slope is within the slope tolerance.

2. Click Modify Slope .

   The Modify Slope dialog box displays. For more information, see Modify Slope Dialog Box.

3. Select the pipe leg to change.

4. Select a slope from the list that puts the component within the minimum slope tolerances.

5. Click OK.

   Smart 3D changes the slope of the component.

You must repeat this procedure for each component that needs to change.

Adjust the Default Change of Direction rule for sloped piping

The Catalog must contain appropriate bend angles in the Default Change of Direction rule for Smart 3D to correctly place turn fittings for sloped pipe runs.

1. Click Task > Catalog.

   Catalog opens.

2. Navigate to Default Change of Direction Rule.

3. Adjust the Bend Angle From and Bend Angle To values as necessary so that the bend angles account for the slope variation.

   

4. Bulk load any changed bend angles. For more information, see Loading Reference Data into the Catalog in the Reference Data Guide.

5. Click Task > Piping.

   Piping opens.

6. Route the sloped pipe.

   Smart 3D calculates the appropriate turn fittings for the sloped pipe run.

• When routing a sloped pipe, use a slope value that is larger than the Minimum Slope for the pipe run to avoid To-Do-Record (TDR). The software compares design slope and minimum slope of the pipe run. If there is a difference between the values caused by any modification, the software generates a TDR.

• If you route the pipe run and allow Smart 3D to automatically place the elbows, Smart 3D can calculate modifications to the pipe run later in the design cycle. Make sure that the elbows you use in sloped piping are trimmable (that is, you can change the bend angle).

Remove small miter fittings

Small miters form when you place 90º elbows on sloped pipes and then route pipe from the end of the elbow instead of letting Smart 3D create elbows based on the angle between the pipes.

Sloped piping typically needs trimmable elbows. If there are no trimmable elbows in the Catalog, Smart 3D cannot adjust the angle for sloped piping.

Use the following procedure to remove these small miter fittings:

1. Select the miter fitting.

   

   The angle for the small miter fitting displays in the Angle 1 box.

2. Type 0 in the Angle 1 box.

   Smart 3D removes the miter and adjusts the angle and orientation of the fitting to accommodate the sloped piping.