To Redefine Insulation Assigned to a Part of a Pipeline
Spec-Driven Piping creates insulation segment features after you assign insulation to a part of a pipeline. You can redefine insulation segment features at any time during the piping design process.
1. Open the assembly associated with the pipeline containing the insulation segment feature to be redefined.
2. In the Model Tree, locate the insulation segment feature to redefine. The Model Tree lists the following insulation features:
◦ Insulation Features—Stores the insulation data such as codes, names, thickness, sizes, and so on for a pipeline. Spec-Driven Piping identifies the insulation features by the insulation code. You cannot redefine insulation features from the Model Tree. You must modify the specification database insulation files.
◦ Insulation Segment Features—Stores the start and end points for insulation on a part of a pipe segment.
Using the Model Tree to Redefine Insulation
1. Select the Insulation Segment feature to redefine from the Model Tree. The feature is highlighted on the pipeline in the graphics window. Right-click and a shortcut menu appears.
2. Click 
. The Redefine Insulation dialog box opens with the insulation segment selected.
. The Redefine Insulation dialog box opens with the insulation segment selected.3. Select Start under Insulation Segment Points and perform any of the following tasks:
◦ Change the insulation start point. Under Select Start Point, click 
and select a pipe segment to specify the insulation start point. Crosshairs indicate the start point on the pipe segment and the pipe segment ID is displayed in the Select Start Point box.
and select a pipe segment to specify the insulation start point. Crosshairs indicate the start point on the pipe segment and the pipe segment ID is displayed in the Select Start Point box.◦ Change the insulation end point. Select End under Insulation Segment Points. Under Select End Point, click and select the insulation end point. Crosshairs indicate the end point on the pipe segment and the pipe segment ID is displayed in the Select End Point box.
and select the insulation end point. Crosshairs indicate the end point on the pipe segment and the pipe segment ID is displayed in the Select End Point box.◦ Change the start and end point placement. Under Dimension, select one of the following to specify both start and end point placement. You must select Start and End under Insulation Segment Points to place the appropriate points:
▪ 
—Specifies the distance of the start or end point distance from the pipe segment's upstream end.
—Specifies the distance of the start or end point distance from the pipe segment's upstream end.▪ 
—Specifies the distance ratio of the start or end point from the pipe segment's upstream end.
—Specifies the distance ratio of the start or end point from the pipe segment's upstream end.▪ 
—Places a start or end point on the pipe segment perpendicular to that pipe segment. The pipe segment's start point must be perpendicular to the pipe segment's end point to make this option available.
—Places a start or end point on the pipe segment perpendicular to that pipe segment. The pipe segment's start point must be perpendicular to the pipe segment's end point to make this option available.▪ 
—Places a start or end point from a specified datum plane. The datum plane must be perpendicular to the pipe segment's start or end point. Spec-Driven Piping creates a reference to the datum plane.
—Places a start or end point from a specified datum plane. The datum plane must be perpendicular to the pipe segment's start or end point. Spec-Driven Piping creates a reference to the datum plane.▪ 
—Places a start or end point from a specified fitting. The selected fitting must exist in the same pipeline and in the same straight pipe piece.
—Places a start or end point from a specified fitting. The selected fitting must exist in the same pipeline and in the same straight pipe piece.▪ Under Dimension, specify the point location parameters based on the selected placement option. Use the thumb wheel to move the point placement or enter a value in the thumb wheel box for exact placement.
▪ If you clicked , select a datum plane from the graphics window. Spec-Driven Piping displays the datum plane name in the box under Dimension box.
, select a datum plane from the graphics window. Spec-Driven Piping displays the datum plane name in the box under Dimension box.◦ Change the insulation. Under Insulation Parameters, select a new insulation code to assign new insulation between the specified placement points.
4. Click OK to assign new insulation to the pipe segment. Spec-Driven Piping creates a new insulation feature and reassigns the insulation segment feature to it.
 | • The following Specification Database files must be populated with insulation data in order to assign insulation to spec-driven pipelines: ◦ The Insulation Directory file (Project Data file) must contain records for the insulation codes. ◦ The Insulation MCAT file (Master Catalog file) that is assigned to an insulation code must contain insulation data. • The Model Tree must display features to redefine insulation segment features from the Model Tree. Click  and then Tree Filters. The Model Tree Items dialog box opens. Under Display, click the Features check box and click OK.• Optionally, Spec-Driven Piping can create insulation quilts after you create pipe solids. |