Netafim TECHLINE CV User Manual

8
N E T A F I M T E C H L I N E
®
C V D E S I G N G U I D E
N E T A F I M T E C H L I N E
®
C V D E S I G N G U I D E
BASIC
DESIGN
STEPS
(continued)
LENGTH OF TECHLINE CV ROWS:
• As with overhead irrigation, friction losses through pipe determine how long a length of pipe can be.
• You do not need to go through friction loss calculations for Techline CV laterals. It has already been
done for you.
• Table 2 shows the maximum length of a single Techline CV lateral within a zone.
• The chart also determines what the operating pressure of the zone needs to be. Example - If you
have a 322ʼ lateral of 0.6 GPH/12” Techline CV, it will need 35 psi to operate properly. If it is from
323ʼ- 369ʼ, it will need 45 psi. Note: We will discuss how to regulate your pressure in the Pressure
Regulating Valve section on page 14.
• Once the zone is laid out, note the pressure you will need somewhere on the design. We will need
this information later to size the Pressure Regulating Valve.
CENTER FEED GRID LAYOUTS:
• You can increase the length of
laterals by center-feeding the zone.
By doing so, you can have a length
of Techline CV as called out in Table
2 going in each direction, effectively
doubling the maximum lateral
length. This is just like we discussed
with the LITE layout on page 6.
• Where layout flexibility exists,
Center Feed layouts are an
excellent design method.
• They allow for the most even flow of
water through the zone.
• They are an excellent option for
median strips and other large,
homogenous areas.
Manual Line Flushing Valve
Plumbed to PVC or Poly
Techline Start Connection
Male Adapter
Remote Control Valve with
Disc Filter and PRV
Techline
®
CV Tubing Lateral
PVC or Poly Exhaust Heade
r
LF
LF
Techline Start Connection
PVC or Poly Supply Header
Area Perimeter
Perimeter Laterals
2" to 4" From Ed
g
e
Techline CV
Center Feed Layout
109
325
409
469
0.4
86
256
322
369
0.6
127
427
539
618
0.26
65
194
244
280
0.9
151
459
579
664
0.4
91
274
346
397
0.9
152
458
580
666
0.6
116
348
440
506
0.9
15
25
35
45
Dripper Flow Rate (GPH)
INLET PRESSURE (psi)
120
361
456
523
0.6
177
604
763
877
0.26
TECHLINE CV DRIPPER SPACING
TECHLINE
®
CV Maximum Length of a Single Lateral (feet)
TABLE 2

Netafim TECHLINE CV Specifications

General

Brand	Netafim
Model	TECHLINE CV
Category	Irrigation System
Language	English