Sizing Lateral Lines

 

 

Watch the video

 

You can size a single valve’s laterals right after you draw the pipes for that valve, or size all of the lateral pipes for the entire project at once. Before sizing any lateral pipe, it is always a good idea to verify the piping of a single valve with the Highlight Valve function, and verifying the piping of an entire system with the Verify Piping function.

 

When the Lateral Size function is activated:

§	The pipes are color coded for the different pipe sizes. The pipes are still on the original layer, LI-PIPE-LTRL, but the color is changed for the size.

§	Labels are placed off to the side of each pipe size transition. These labels are easily manipulated with the label organization functions.

§	Whether you size one valve at a time, or all valves at once, use “Undo” to back up your sizing at any time.

 

The command line will ask:

 

Select valve to size <All>:

 

Either manually select each valve one at a time, and that valve’s lateral system will be sized, or press Enter to select all of the valves in the project.

 

Size All Valves at Once

 

After selecting Size Lateral Pipe as indicated above, pressing Enter will size all of the lateral lines at one time.

Size All Valves at Once is best used on a simple system with just a few valves. On a project that is complex, with a great many valves and/or points of connections, it may be wise to select each valve at a time.

F Remember: When you Size All Valves at Once, you cannot take into consideration the pressure loss/gain caused by the elevation difference between the highest head and the valve, and the valve to the P.O.C., as you can when you Size One Valve at a Time.

 

Size One Valve at a Time

 

The advantage of selecting one valve at a time is that a dialog box will ask for elevation points for the highest head, and of the valve to the P.O.C.

 

Elevation dialog box when sizing one valve at a time. Either one or both of these numbers can be “0” if the Designer is not concerned with adding this information.

 

This will allow the calculations for sizing the lateral and mainline to take into consideration the pressure loss or gain from elevation changes.

 

Calculation Information

 

The pipe sizing is based upon the End User input as to the type of pipe, the static pressure, etc. in the Irrigation Manager Source Data and Pipe Data indicated at the start of this section.

F Remember: You can change the Source Data and Pipe Data information at any time. After sizing a lateral system and changing, for instance, the lateral pipe type from PVC Class 200 to PVC Schedule 40, simply re-size the lateral system.

 

Equipment Info/Edit Function

 

The Equipment Info/Edit function is valuable for reviewing the requirements of piece of irrigation equipment, such as a head or valve, or any given length of pipe.

 

Equipment Info/Edit button.

 

Pipe Info/Edit

If you click on this function and select a piece of irrigation pipe that you have already sized, it will allow you to see the size, flow and pressure required on the pipe, and it will allow you to upsize or down size the pipe.

 

Equipment Info/Edit dialog box after selecting a section of pipe.

 

You can upsize or downsize the equipment by selecting the drop down box.

 

Head Info/Edit

If you use this function and select a head, you will get information about that head in the Equipment Info/Edit dialog box.

 

Equipment Info/Edit dialog box after selecting a head.

F Remember: It’s a little dangerous If you should decide You can not only upsize or down size a section of pipe, but you can add flow and pressure requirements to the line, in case you are capping for future use, and want the pipe to reflect the possible future demand.

 

Valve Info/Edit

If you use this function and select a valve that you have already sized, you will get information about that valve in the Equipment Info/Edit dialog box.

 

Equipment Info/Edit dialog box after selecting a head.