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 point
Some pipes are under constant
pressure
Some pipes are under pressure only
when a valve is open
Pipe Sizing Chart Exercise
Main line - carries water to water
meter – under constant pressure
Service line – carries water from meter
to residence, valves, etc. – under
constant pressure
Lateral 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 use
Pipe sizes are based on what?
Flows
Pipe Sizing Chart Exercise
Main and service lines
Class 315 — 1/2” and 1-1/2” and larger
Schedule 40 — 3/4” to 1-1/4”
Common abbreviations:
Class = CL
Schedule = SCH
Pipe Sizing Chart Exercise
Lateral lines
Class 315 — 1/2”
Class 200 — 3/4” and larger
Class = CL
Schedule = SCH
Pipe Sizing Chart
Exercise
With that in mind. . .
And using the pipe
sizing tables . . .
Pipe sizes are
selected based on
flow
Without exceeding
safe velocity
Pipe Sizing
Chart
Exercise
Build a table
showing:
Flow ranges
Pipe sizes
Pipe types
Pipe Sizing Chart Exercise
Create a table for main/service lines
and lateral lines with the above
information
From the Rain Bird Irrigation Design
Manual
Sch 40 technical data table
Cl 200 technical data table
Cl 315 technical data table