Completely free and anonymous downloads :-
You need to download AAINFO.EXE first by clicking on the button below and saving it on your computer. When run, you can choose HYD and my other FREE software packages as required. For more information, see Program 1 of 11 on my HOME page.
I now offer my "Windows" based program for Sprinkler Hydraulic Calculations for FREE :-
- Complies with latest BSEN 12845 Sprinkler Rules
- Free to download and free to use for as long as you want
- Uses "node" numbers to identify junctions in network
- For each node, you specify its height, if a operating head, its type and area or the flow rate if a hydrant
- For each pipe, its start and end node numbers, size and pipe type, length and any fittings such as elbows, tees, control valves etc
- Some project, water supply and data on the different types of heads / nozzles is also needed
- Once this data has been prepared and typed into familiar spreadsheet like grids, the calculations can be run and either warning messages given to point out any inconsistances, above / below set limits etc or the results presentation shown on the screen
- The data can then be amended as required or the results pages printed out
- For a Ordinary or High hazard sprinkler system, you repeat the above for other design areas that may be required
- You can draw the system out with the mouse to visualise the pipework layout
- Database of pipe types, sizes and fittings easily changed
- Several example projects and initial database supplied
- Lots of "help" screens to guide you through your initial training
- You can have multiple copies of HYD at home, in the office, on site etc
- You enter your name / address on first run to appear on results printouts / emails
- This is the "full complete" program, not a trial/demonstration
- Updates if needed will be posted here at no further charge
- Technical support offered by Email to the address given above
- Latest version works on Windows 7 as well as 2000, XP and Vista
HYD was written quite a few years ago but I have added the changes in the latest BSEN 12845 Rules (so you may get slightly different answers than before). It is a much easier to use than AACALC7 and more applicable for use overseas. It comes with some demo jobs, lots of help and splits the "node" data from the "pipes" data as shown on the following screen shot :-
The "Nodes and heads" data on the left gives the height and if a head at the end node, its type and area. The "Pipes in system" grid on the right gives the start / end nodes and the size in mm, pipe type, length in m and a list of fittings in that section. There is a full database of pipe types, sizes and fittings that you can add to as required.
The "menu" across the top allows various options to be selected with a "toolbar" underneath to enter and amend this information, to calculate and to view the results as shown below :-
The database I supply can be added to or amended by you :-
There is an optional drawing part that may be of interest :-
INSTALLERS PUMP DATA SHEET PROGRAM - IPDS43
[25th May 2012] A FREE standalone program for the calculation of the Qcap and Qmax values for the Installers Pump Data Sheet as the EN12845 and similar Sprinkler Rules in the same format as EASYSHP, so can also be used with HYD and older programs that do not include such an option. You just enter the flows, pressures and highest heads for the most remote / favourable design areas as well as the pump / tank details. These are typed in on simple "tabbed" data entry screens and you can view the resulting graph on the same screen - the tank information is shown above. When you first start IPDS43, it displays some "Help" as I am sure most of you are quite familiar with such programs :-
I first did such a 'graph plotting' program on the Amstrad PCW in 1986, followed by one for MS.DOS a few years later, initially for CGA, then EGA and VGA screens. I did the QCAP one for Windows 95 in 1997 and another one for the CEN Rules but this was not released because it confirmed that the 70 / 140 % requirement was never going to work! When I produced AACALC7 in 2009, I integrated the 'graph' part with the full hydraulic calculation of the most remote and favourable design areas, so you didn't have to type in those values. However, the pump manufacturers do not permit any third parties to copy their flow / pressure values into computer programs, so you must type these in, each time, for yourselves. The final screen-shot shows (in an exaggerated fashion) that you can view the data and the graph on the same screen and that I calculate a smooth pump curve between the 8 flow / pressure points you enter. IPDS43 is set for a 1024 x 768 screen so will work on any laptop or desktop computer but it does look a bit daft on a 1920 x 1080 HD screen!
Don't forget that you need to download AAINFO.EXE first - see top of page.