Unit 22.00 Terms
Last Modified: 2012-03-22
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
b. Care should be taken to make as few turns as possible when designing an irrigation piping
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.
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%
Galvanized steel pipes
temperature for use with hot water.
together using a solder that is melted with a propane torch.
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
a. A plastic sheet – to place soil on
b. Long screwdriver – to remove valve box cover
c. 2 shovels – to dip up box
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
o. New valve
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