Flow variance is the actual flow compared to the expected flow. Both above and below expected flow conditions can be detected and then acted upon.

1.  In PipeView position the hydraulic system diagram so you can see the mainline that you want to work with (refer to Using PipeView).

2.  Click the mainline that you want to work with. The slide-out pane displays.

3.  Click Details in the lower-right. The mainline details display.

4.  Click Edit in the lower-right corner. The mainline details are available for editing.

5.  If necessary, click the Flow Management header to expand the section.

6.  In the Limit field of the Flow Variance row, click the up or down arrow to set the percentage for the allowable variance.

7.  If you want zones (valves) assigned to this mainline to be stopped and corresponding master valves (MVs) shut off when the flow rate exceeds the limit, click in the Shutdown field to display a check mark. If you do not want excessive flow to shut down the system, click in the Shutdown field to remove the check mark.

8.  Click Save in the lower-right corner.