Netafim TECHLINE CV User Manual

16
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)
SLOPES AND BERMS:
Techline CV has a check valve built into each
dripper. This allows the dripperline to hold
back up to a 4
1
/2 feet column of water. As
such, designing Techline CV on slopes and
berms is very easy.
• Techline CV should be installed
perpendicular to (across) slopes
• In the upper
2
/3 of the slope, space Techline
CV per TABLE 1, page 5, 27 or 39.
• In the lower
1
/3 of the slope, increase the
distance between rows by 25%.
• For every 4
1
/2 feet of elevation change,
either:
- Split the slope into separate zones, or
- Install a Netafim “TLCV” inline check
valve.
PVC or Poly Supply Header,
(continues to next tree)
Estimated
Dripline of
Mature Tre
e
Valve, Filter
PRV Assembly
Tree Rootball
Techline CV Tubing
(dimensions per plans)
Line Flushing Valve
with Gravel Sum
p
LF
Techline
®
Tee
TLCV Specifications:
• Flow Range: 0.9 - 4.4 GPM
(200 - 1,000 I/h)
• Closing Pressure: 5.7 psi (4m)
• Opening Pressure: 7.1 psi (5m)
• Can hold back a 13ʼ column of water (5.7 ÷ .433)
• Connection: 17mm insert
18" at Top
Up To
+25%
22 1/2" at Botto
m
2/3
1/3
Taller Slope Irrigation Method
Techline CV Tubing and
Accessories for Tree Planting
Techline Check Valve (TLCV):
• Designed to hold back up to a 13ʼ column of water
• Rule of Thumb: Every 1ʼ of water exerts 0.433 psi of pressure at the base of the column.
As such, a 100ʼ column of water exerts 43.3 psi at the base.
TREES:
• It is important to provide trees
with adequate water at the
rootball, while also planning for
the treeʼs needs as it grows.
NOTE: When trees are
transplanted, the soil in the rootball
and the native soil are different.
You must ensure that there are
sufficient drippers irrigating both
soils because water will not
migrate from one soil type to the
other.
• A loop of Techline CV close to
the rootball, with more Techline
CV surrounding the estimated
dripline of the tree when mature
will provide sufficient water.

Netafim TECHLINE CV Specifications

General

Brand	Netafim
Model	TECHLINE CV
Category	Irrigation System
Language	English