Basic Design Steps; When Should You Use Techline Cv; Choosing The Proper Techline Cv; Techline Cv General Guidelines Chart - Netafim Techline CV Design Manual

Subsurface or on-surface pressure compensating dripperline with check valve
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N E T A F I M T E C H L I N E
BASIC

WHEN SHOULD YOU USE TECHLINE CV?

DESIGN
• Anytime you want to create an even wetted pattern of water throughout an area.
STEPS
• Since the object of sprinklers is also to create an even wetted pattern, you can use Techline CV

CHOOSING THE PROPER TECHLINE CV:

• From Table 1, answer two questions:
• Follow the proper column listed under TURF or SHRUB & GROUNDCOVER to identify the proper
• What other information is in the General Guidelines Chart?
anytime you can use sprinklers.
1. Are you irrigating a Shrub & Groundcover area or Turf?
2. Is the soil Clay, Loam or Sandy?
Techline CV. Example - If you choose Shrub & Groundcover, with loam soil, 0.4 GPH/18" Techline CV is
the proper choice. (Each dripper will deliver 0.4 GPH and the drippers, mounted inside the tubing, are
spaced 18" apart.)
1. How far to spread out the laterals is listed on the "Lateral (Row) Spacings" line.
(For this example, rows should be evenly spaced anywhere from 18" - 24" apart.)
2. The corresponding application rates and time to apply are listed under the Lateral Spacings
line. (With rows of 0.4 GPH/18" Techline CV every 18" apart, the application rate is 0.29 inches
per hour and it will take 52 minutes to apply
rate is 0.21 inches per hour, and it will take 71 minutes to apply
spacings, see page 26.)
TABLE 1
Dripper Flow
Dripper Interval
Lateral (Row) Spacings
Burial Depth
Application Rate (in./hr.)
Time to Apply
1
/
4
of Water (in minutes)
Maximum spacing recommendations: Following these spacing guidelines, dripper flow selection can be increased if desired by the designer.
C V D E S I G N G U I D E
®
1
/
" of water. If the rows are 24" apart, the application
4
TECHLINE
®
TURF
Clay Soil
Loam Soil
Sandy Soil
0.26 GPH
0.4 GPH
0.6 GPH
18"
12"
12"
18" - 22"
18" - 22"
12" - 16"
On-surface or bury evenly throughout the zone to a maximum of 6 inches
.19 - .15
.43 - .35
.96 - .72
"
79 - 100
35 - 43
16 - 21
1
/
" of water. For other row
4
CV General Guidelines
SHRUB and GROUND COVER
Clay Soil
Loam Soil
0.26 GPH
0.4 GPH
18"
18"
18" - 24"
18" - 24"
.19 - .14
.29 - .21
79 - 107
52 - 71
Sandy Soil
0.6 GPH
12"
16" - 20"
.72 - .58
21 - 26
5

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