The H-Factor

Reducing Entropy

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Welcome

Recently our previous blog service (Typepad) ended their business – so, we have a new home. It will take a bit to get images back and displaying properly, but we are working on it! Final pageview count of original Typepad blog: 387,232

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Using a Non-Standard Pipe Type in HydraCALC

A customer called today asking how to enter a 1″ black plastic underground pipe for the calc. This particular situation sounded unique enough that I did not tell him to add that pipe type to our database, as I would have if he expected to see this pipe type used repeatedly. I told him to…

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Using the Hydratec Software Download Area

Hydratec uses ShareFile to distribute our software installs and updates. New customers, or those without access, must request access to be able to get at these downloads. Access is only available to customers with a Hydratec subscription or those on an update plan. You can access the download area and request access by picking the…

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October 2012
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Using the Graphical Pressure Display

HydraCALC has a special tool to help you figure out where in your system losses are occuring. The Graphical Pressure Display (GPD) is that tool. In order to use it, one extra step is needed – you need to fill in the column named Input Type

This column specifies the role of each pipe in the system. It does not affect the calculation in any way. also, it is automatically filled in by the AutoCalc process and it is also filled in if you bring in the job from HydraCALC-Sizer. The Num. of Hds. column does not need to be filled out.

After a calc is run, pick the GPD button to see the tool.

This tool shows exactly where the losses occur in your system. Note the color coded relationship between the graph and the individual items listed at left. In this case, say we needed a 10 pound cushion. With only a 3 pound cushion right now, it would not make sense to increase the riser nipple size, since they are only losing 1.97 pounds, total.

Another special feature of this tool is the ability to change items in your input directly from here. To change the K-Factors of all the heads, or to simply see if changing them will help, hover over the E.H.Press (End Head Pressure) item at left and click on it. This will bring up a list of available K-Factors. To see how this part works, refer to this K-Factor Analysis post, which previously addressed that.

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