- StudyBlue
- North Carolina
- J F Webb High School
- Horticulture Ii Turfgrass
- Murphy
- Unit 22.00 Terms
Unit 22.00 Terms
Horticulture Ii Turfgrass with Murphy at J F Webb High School
About this deck
By: Ashley Campbell
Created: 2012-03-22
Size: 15 flashcards
Views: 2
Created: 2012-03-22
Size: 15 flashcards
Views: 2
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Sprinklers
a. Need to be placed in such a way to throw the water sprinkler to sprinkler or head to head.
b. In the irrigation industry, sprinklers are often called heads.
c. The distance from the sprinkler head to the furtherest point of water application is the radius
of throw.
b. In the irrigation industry, sprinklers are often called heads.
c. The distance from the sprinkler head to the furtherest point of water application is the radius
of throw.
Piping
a. With every turn in an irrigation piping system, there is created more resistance to flow.
b. Care should be taken to make as few turns as possible when designing an irrigation piping
circuit.
b. Care should be taken to make as few turns as possible when designing an irrigation piping
circuit.
Slope
1. Refers to the incline or difference in elevation from one part of property to the other.
2. To find the slope measured in percentage you should:
a. Divide the rise (measure of height) by the run (measure of length)
b. Multiply the above figure by 100.
2. To find the slope measured in percentage you should:
a. Divide the rise (measure of height) by the run (measure of length)
b. Multiply the above figure by 100.
Slope continued..
c. Example: If you measured from the edge of your house out 40 feet and pulled a level
masonry line out that 40 feet and the level line was 12 inches off the ground, that would indicate a drop of 12 inches. Calculated: 12 inches ␣ 480 inches(40 feet) x 100 =
12 ␣ 480 = .025 .025 x 100 = 2.5%
masonry line out that 40 feet and the level line was 12 inches off the ground, that would indicate a drop of 12 inches. Calculated: 12 inches ␣ 480 inches(40 feet) x 100 =
12 ␣ 480 = .025 .025 x 100 = 2.5%
Electrical current
In electricity, a complete circuit is one where the power flows in one wire or lead, goes through the electrical component (a light) and leaves on a different or neutral wire. If either lead is broken or interrupted, the power stops flowing.
Electrical transformer
All controllers need 120 volts or in that range to operate, but they have a transformer that steps down the electricity to 24 volts. This stepped down electricity is sent out through the field wiring to the solenoids that control the irrigation valves. The stepped down voltages is much safer.
Field wiring
Wire buried directly in the ground. Because of the extreme environment, approved wire should be used. All commercial systems require the use of UF (underground feeder) U.L. approved wire. The most frequently used wire for commercial application of an automatic sprinkler system is single strand, heavy gauge direct burial copper wire.
U.L.
Underwrite ’s Laboratories – established by insurance companies and sets safety standards for all electrical supplies and devices in U.S.
Galvanized steel pipes
Steel coated with zinc to prevent rusting.
PVC pipes
Polyvinyl chloride, plastic. This is a pipe of choice for irrigation.
CPVC pipes
Light or cream-colored plastic pipes specially formulated to withstand higher
temperature for use with hot water.
temperature for use with hot water.
PE pipes
Black plastic tubing used below ground. This is a pipe of choice for irrigation.
Copper pipes
Tubing that is manufactured from 99.9% pure copper. Copper pipe is joined
together using a solder that is melted with a propane torch.
together using a solder that is melted with a propane torch.
Irrigation controller
1. Also know as a timer.
2. The part of an automatic sprinkler system that determines when a valve will turn on and how long it will operate.
2. The part of an automatic sprinkler system that determines when a valve will turn on and how long it will operate.
Irrigation valve replacement
1. Tools and materials needed.
a. A plastic sheet – to place soil on
b. Long screwdriver – to remove valve box cover
c. 2 shovels – to dip up box
d. 2dbr
e. 2dby
f. 1 roll, black electric tape – to tape plunger inside solenoid from falling out.
g. 1 PVC saw
h. 1 strap wrench
i. 2 pipe wrenches – large enough for your pipe and fittings.
j. 1 can PVC cement
k. 1 can PVC primer
l. Repair coupling
m. Slip coupling
n. Pipe
o. New valve
a. A plastic sheet – to place soil on
b. Long screwdriver – to remove valve box cover
c. 2 shovels – to dip up box
d. 2dbr
e. 2dby
f. 1 roll, black electric tape – to tape plunger inside solenoid from falling out.
g. 1 PVC saw
h. 1 strap wrench
i. 2 pipe wrenches – large enough for your pipe and fittings.
j. 1 can PVC cement
k. 1 can PVC primer
l. Repair coupling
m. Slip coupling
n. Pipe
o. New valve
About this deck
By: Ashley Campbell
Created: 2012-03-22
Size: 15 flashcards
Views: 2
Created: 2012-03-22
Size: 15 flashcards
Views: 2
About StudyBlue
STUDYBLUE makes things that make you better at school.
Things like online flashcards with photos and audio.
Things like personalized quizzes and friendly reminders about when (and what) to study next.
Think of it as a digital backpack™: access to all of your study materials online and on your phone.
STUDYBLUE exists to make studying efficient and effective for every student, for free. Join us.
“I have used this website for three exams, and I see a huge difference in my test results.”
Naj
Naj