Elevation change

To add a new elevation change, click the button  of Components toolbar or use the corresponding item of "Insert - Component" menu. Please note that the new component is added to the project tree after the currently selected element. Therefore, to add a new component after an existing one, select it in the project tree or in the graphic window and add the new component. If you need to add a new component to the beginning of a branch, select the branch in the project tree and add the new component.

The elevation change (rise/down) element is used to model the hydrostatic component of the pressure drop ("liquid column") on any elements of the piping system. For example, it is used when specifying valves (or other devices) with non-coaxial nozzles - when the inlet and outlet of the flow from the element are at different heights. In this case, this difference in heights can be taken into account in the calculation by specifying the elevation change element.

After adding an elevation change, its characteristics will be displayed in the Object Properties Window:

• name - by default, when entering a new piping component, its name matches the type, but if necessary, it can be changed in this field. Specify the name that you would like to see for this component in reports with calculation results. To display the component name on the piping diagram, click the corresponding button to the right of its name;

• elevation difference - in this field you need to enter the difference in heights that you want to model. A positive value corresponds to a rise, a negative value - to a fall;

• quantity - this parameter is usually not used for elevation change component. It is used for other pipeline elements (for example, for valves or bends) when modeling several identical elements. In this case, you can enter the quantity of these elements in this field and at the calculation, the hydraulic resistances on this element will be multiplied by the specified value. For an elevation change component specifying "N rises/downs by M meters" does not make sense, since you can simply specify the total elevation difference N*M.

Please note that from a hydraulic point of view, elevation change is considered solely as a hydrostatic pressure drop (only a difference in height), without any "length". Therefore, this element is not recommended for modeling vertical and inclined pipes, since in addition to hydrostatic losses, friction losses will also occur on these pipes, which will not be taken into account when modeling them as elevation change.