Pipe Sizing Chart Exercise

Based upon the tables in the book Rain Bird Irrigation Design Manual

Pipe Sizing Chart Exercise

Irrigation pipe carries water from point to pointSome pipes are under constant pressureSome pipes are under pressure only when a valve is open

Pipe Sizing Chart Exercise

Main line - carries water to water meter – under constant pressureService line – carries water from meter to residence, valves, etc. – under constant pressureLateral line – carries water from valve to the sprinkler – under pressure only when valve is open

Pipe Sizing Chart Exercise

Pipe types are selected based on type of usePipe sizes are based on what?Flows

Pipe Sizing Chart Exercise

Main and service linesClass 315 — 1/2” and 1-1/2” and largerSchedule 40 — 3/4” to 1-1/4” Common abbreviations:Class = CLSchedule = SCH

Pipe Sizing Chart Exercise

Lateral linesClass 315 — 1/2”Class 200 — 3/4” and largerClass = CLSchedule = SCH

Pipe Sizing Chart Exercise

With that in mind. . . And using the pipe sizing tables . . .Pipe sizes are selected based on flowWithout exceeding safe velocity

Pipe Sizing Chart ExerciseBuild a table showing:Flow rangesPipe sizesPipe types

Pipe Sizing Chart ExerciseCreate a table for main/service lines and lateral lines with the above informationFrom the Rain Bird Irrigation Design Manual Sch 40 technical data tableCl 200 technical data tableCl 315 technical data table