Olds College LHAP LHAP 302B Piping
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LHAP 302B Piping

LHAP 302B-61-40681 (FA25) - Landscape Irrigation/Course/Irrigation Components/Basic Hydraulics and Piping/LHAP 302B Piping .pptx

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Slide 1 Irrigation Piping ComponentsLHAP 302B Slide 2 Aluminum almost exclusively used for above ground installations often when removal of crops or ground disturbance is required nurseries, orchards, row crops etc. Advantages light weightgood strength and rigidityresistant to corrosionlow material costfully recyclable Slide 3 Aluminum sold in 20’ lengths Fittings mechanical - use a latch or band and latch with a rubber gasket in the female end or bolted flanges Slide 4 Aluminum wheel move system hand move system center pivot system Slide 5 Polyvinyl chloride (PVC) underground applications mainlines and lateral lines sold in 20 ft lengths pipe measured by outside diameter(IPS in Canada) Slide 6 PVC Advantages lightweight easy to install low friction loss variety of pressure ratings resistant to corrosion Disadvantages will fatigue due to continual pressure surges winter frost heaving will shatter the pipe Slide 7 PVC Attached using “Solvent Welding” primer to soften pipe, glue applied immediately after to seal joint Weld On pipe connection video Bell and Gasket Pipe connection each section has a bell end (section larger in diameter than rest of pipe) join to pipe end with spigot containing a rubber gasket stabilize with thrust blocks Slide 8 Polyethylene (PE) widely used in small irrigation systems (mostly residential/ light commercial) inexpensive comes in rolls Slide 9 PE Also used in greenhouse and micro irrigation system Advantages high amount of expansion and contraction much more forgiveness to ground movement Disadvantage only used for lower pressures 25 - 100 psi Slide 10 PE Fittings measured by inside diameter insert fittings and clamps threaded fittings compression fittings ¾” ins x ¾” ins x ½” ins tee 1” ins x ¾” MIPT coupling compression elbow Slide 11 High Density Polyethylene thicker version of PE used for high pressure systemsMainlines in larger municipal, industrial and commercial sites can withstand high and low pressurescan withstand accelerated soil movement measured in outside diameter (IPS) Slide 12 HDPE Connections fusion welding compression fittings resistant to corrosion and chemicals lightweight Slide 13 Pipe Strength measured SDR - Standard dimension ratio outside diameter 2” diameter pipe = SDR 20 wall thickness 0.1” wall thickness Schedule = wall thickness (Sch 40, Sch 80)mostly used for PVC fitting in irrigation rarely for pipe Slide 14 Pipe strength cont. Class/Series = maximum recommended operating pressure eg: Class 160, Class 200, Class 315mostly used for PVC (to account for surge pressure it is recommended to design to no more than 78% of the max operating pressure) SDR, Class, or Pressure will be stamped on the pipe Slide 15 Pipe InstallationLHAP 302B Slide 16 Pipe Installation Trenching cut a trench into the ground using a trenching machine Slide 17 Trenching Slide 18 Vibratory Plow pulls pipe through the ground using vibration Slide 19

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Slide 1

Irrigation Piping ComponentsLHAP 302B

Slide 2

Aluminum

almost exclusively used for above ground installations

often when removal of crops or ground disturbance is required nurseries, orchards, row crops etc.

Advantages

light weightgood strength and rigidityresistant to corrosionlow material costfully recyclable

image47.png

Slide 3

Aluminum

sold in 20’ lengths

Fittings

mechanical - use a latch or band and latch with a rubber gasket in the female end or bolted flanges

image50.png image51.png image62.png image52.png

Slide 4

Aluminum

wheel move system

hand move system

center pivot system

image57.png image58.png image55.png

Slide 5

Polyvinyl chloride (PVC)

underground applications mainlines and lateral lines

sold in 20 ft lengths

pipe measured by outside diameter(IPS in Canada)

image56.png image65.png image67.png

Slide 6

PVC

Advantages lightweight easy to install low friction loss variety of pressure ratings resistant to corrosion

Disadvantages will fatigue due to continual pressure surges winter frost heaving will shatter the pipe

Slide 7

PVC

Attached using “Solvent Welding” primer to soften pipe, glue applied immediately after to seal joint

Weld On pipe connection video

Bell and Gasket Pipe connection each section has a bell end (section larger in diameter than rest of pipe) join to pipe end with spigot containing a rubber gasket stabilize with thrust blocks

image60.png

Slide 8

Polyethylene (PE)

widely used in small irrigation systems (mostly residential/ light commercial)

inexpensive

comes in rolls

image54.png

Slide 9

PE

Also used in greenhouse and micro irrigation system

Advantages

high amount of expansion and contraction much more forgiveness to ground movement Disadvantage

only used for lower pressures 25 - 100 psi

image53.jpg

Slide 10

PE

Fittings measured by inside diameter

insert fittings and clamps threaded fittings

compression fittings

¾” ins x ¾” ins x ½” ins tee

1” ins x ¾” MIPT coupling

compression elbow

image64.png image61.png image59.jpg

Slide 11

High Density Polyethylene

thicker version of PE

used for high pressure systemsMainlines in larger municipal, industrial and commercial sites

can withstand high and low pressurescan withstand accelerated soil movement

measured in outside diameter (IPS)

image63.png image72.png image68.png

Slide 12

HDPE

Connections

fusion welding

compression fittings resistant to corrosion and chemicals lightweight

image66.png image73.jpg image69.png

Slide 13

Pipe Strength measured

SDR - Standard dimension ratio

outside diameter 2” diameter pipe = SDR 20 wall thickness 0.1” wall thickness

Schedule = wall thickness (Sch 40, Sch 80)mostly used for PVC fitting in irrigation rarely for pipe

Slide 14

Pipe strength cont.

Class/Series = maximum recommended operating pressure

eg: Class 160, Class 200, Class 315mostly used for PVC

(to account for surge pressure it is recommended to design to no more than 78% of the max operating pressure)

SDR, Class, or Pressure will be stamped on the pipe

Slide 15

Pipe InstallationLHAP 302B

Slide 16

Pipe Installation

Trenching cut a trench into the ground using a trenching machine

image83.jpg image71.jpg

Slide 17

Trenching

image70.jpg image77.jpg image84.jpg

Slide 18

Vibratory Plow

pulls pipe through the ground using vibration

image80.png image78.png image82.png image74.jpg

Slide 19

image75.jpg image79.jpg image76.jpg

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