You use 1-line displays for annotation of construction documents. The fittings and connections in a 1-line duct system display at their actual envelope dimensions. In-line and anchored components, such as valves, appear as scaled 1-line and MvParts as scaled 2-line.
The following example shows fittings, such as tees, elbows, and reducers, representing their actual envelope dimensions. A gate valve and a check valve appear as scaled 1-line components and the pump as scaled 2-line.
