To Load Pipe System Sizing

A complete piping route needs to be available in the current model. The terminal units are fixtures —such as sinks, or outlet components e.g. sprinklers, taps, etc., used in the route are already set for required Flow Rate values.

Select (Pipe System Sizing).
The Pipe Sizing Section Summary dialog opens. The summary table initially displays empty records.
Click Settings to review the pipe sizing settings prior to calculate.
The Pipe Sizing Settings dialog opens.
Review or set unit, design data, including flow demand, and report parameters in the Settings dialog and click OK to apply the revised settings or Cancel to retain past settings and dismiss the Settings dialog.
The Pipe Sizing Settings dialog closes.
In the Pipe Sizing summary click Load System, and in the view select the source component of the route. This is typically the supply control of water —usually, a tank in down-feed, or a pump and meter in case of pressurised system.
Opens the Assign & Analyze Connection dialog for mapping flow types to available ends and when proceeded, the Pipe Sizing Summary dialog populates section data. The Limit Pipe Velocity is assigned to main pipe at the start of the flow in Section:1. Pipe lengths and default Correction factor values are populated.
Set desired terminal flow and outlet pressure values (if needs to override default values set in DataGroup Instance Data) and click Calculate.
The summary gets refreshed with the revised values and the critical path report pops up indicating the path numbers of critical flow and the pressure drop value. If any Pipe limiting velocity occurs, refine the Limit Pipe velocity in settings dialog, considering the type and material of pipes are suitable.
Note: You can lock pressure or velocity value of a pipe section before recalculations.
Complete the Pipe System Sizing properties and setting allowable values, aiming to achieve a minimal, constant pressure loss at all paths.
Double click in Summary of Coefficients column to review, assign/reassign correct Manufacturer fittings and correct loss coefficient and as required. Revise the correction factor or Override any component loss values in the Component Loss Coefficient (CLC) Summary dialog.

The revised values effect in Pipe Sizing Summary table, as you modify. The CLC Summary dialog is kept open, as needed to revisit.
Review the pressure drop values in the critical path and redo revising pipe sizing values in the pipe section summary data.
Repeat the calculation to arrive at desired pressure loss.

Note: Use the Reports > Sections option to run the Critical Path report to review section to fix in critical path.
When done, close the dialog by clicking the windows [X] to unload Pipe Sizing. A confirmation message prompts before closing, alerting "Data will not be retained after re-opening".

Fittings in critical loss section are set right by retuning their loss coefficient and correction factor values in CLC Table.