Version 12 and Above
When a Pipe Specification is defined, several design limits can be specified in order to generate a warning if any calculated result (or entered design data) is outside of these limits.
In version 12 and above, Velocity, Pressure, and Reynolds Number limits can be specified.
Design limits can be left blank as well.
Version 2009 and Before
Velocity Outside Specification Design Limit
This warning occurs when the user has specified velocity limits in the Design Limits section of the Specification dialog box.
If the velocity is greater than the design limit max value, the pipe will have red arrowheads.
If the velocity is less than the design limit min value, the pipe will have green arrowheads.