The first tab in the project data dialogue will allow you to enter the information which is used as a reference for the project and this information will be printed on the final reports.

When the text label is underlined such as design authority, fluid, welded elbows above and pipe types data file [PDT], these will have an effect on the final calculation so it is important that you accurately complete the information in these fields

Project Name, Address/Location, Project Number and Designers reference

The text entered into the following four drop-down boxes below are used as project reference information only and do not effect the calculation.

Design Authority

You will need to select the Design Authority (design standard such as NFPA 13, EN 12845...) for the project from those available in the drop-down list. FHC provides a comprehensive list of design authorities / standards from around the world.

You can set the default Design Authority in Preferences -> Options you can also customise the Design Authority drop down list to only display design standards which you use most often use in Utilities -> Design Authority 

Fluid type

If the fluid type drop-down box is left blank (empty) then FHC will issue that you are using water and the Hayes-Williams pressure loss formula. You can use the DWF button to change the pressure loss from Hayes-William to the Darcy Weisbach.

'Some design authority require the C-factor of steel pipe to be changed from 120 to 100 for some types of sprinkler systems such as dry pipe systems. To enable this FHC has a DRY command which can be used in the Fluid line. To use this command type 'DRY' in the Fluid text box and any pipes with a C-factor of 120 will automatically be changed to 100. In some instances you may only require pipe after the dry control valve to have there C-factor changed you can do this by using the additional command '#' with the 'DRY' command, so if you were to use 'DRY#3' then only pipes from the third pipe would have there C-factor change. The simplest method to find which pipe number to use is to make a calculation and then look in the report as each pipe is numbered. You should always check the report to insure the C-factor has been changed to your requirements.

DWF Button

The DWF button will allow you to switch the pressure loss formula from Hayes-William to the Darcy Weisbach and vice versa.

If you switch to the Darcy Weisbach pressure loss formula the following entry will be entered into the fluid field such as 'DWF DENS=998 VISC=0.95' when DENS is the density of the fluid and VISC is the viscosity. 

Density is in Kg/m3
Absolute viscosity is in centipoise

This is a command instruction which will instruct FHC to use the Darcy Weisbach pressure loss formula. You can if you wish modify manually the fluid density (DENS unit is Kg/m³) and viscosity (VISC unit absolute viscosity in centipoise) in the fluid type box.

You can set the default pressure loss formula in the Preferences -> Options   

See related video

Welded fittings

You will need to enter the pipe size (in mm) at which you wish to change from screwed fittings to welded fittings; if you leave this entry empty, then FHC will assume that you are only using welded fittings and for this reason, we will always recommend that you enter a value.

Your choice of Design Authority and the Pipe Data Table (PDT) will also determine the equivalent length value. For instance, if you have chosen STD_PIPE.PDT and EN 12845 as the 'Design Authority' then FHC will primarily use the equivalent fitting length given in EN 12845 Table 23. Where the design standards do not provide data for the fitting type, we will use other sources or extrapolate from the data in Table 23.        

In the example below, we have entered 65 (mm). Any fittings on pipes above this size will use the welded fitting equivalent length.

Pipe types data file [PDT]

FHC has a number as standard pipe data type files (PDT) which hold information regarding the pipe material, pipe sizes and equivalent lengths for fitting.  You can select the required PDT from the drop-down list otherwise FHC will use the default PDT if set or STD_PIPE.PDT if not set.  You can set which PDT you would like FHC project to default to when you start a New FHC Project in Tools -> Preferences menu.

You will find more information about Pipe Data Table and there importance in TDS 2 

Cancel Button

By pressing the cancel button you will exit the project data without making any changes to this tab.

Apply Button

By pressing the apply button you will accept the changes you have made and FHC will be updated.

FHC - Reference & Tutorial  |  Version 2.4 

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