20
UPSIDE-DOWN MICRO-EMITTERS
HANDBOOK
MICRO-SPRINKLERS/EMITTERS ASSORTMENT
Filtration
NOTE
The filtration method is to be selected based upon the type and concentration of dirt particles
existing in the water.
•
Wherever sand exceeding 2 ppm exists in the water, a hydrocyclone sand separator is to be
installed upstream from the main filter.
•
When sand/silt/clay solids exceed 100 ppm, preliminary treatment is to be applied according to
guidelines issued by Netafim's team of experts.
Features and benefits
•
SpinNet™ micro-sprinklers are constructed without a "bridge" to retain the spinner. This benefit produces:
a. A drip-less operation
assuring that plants placed underneath the micro-sprinklers are not damaged by
water dripping.
b. A shadow-less operation
providing a higher distribution uniformity without dry areas where the water
distribution is obstructed by a "bridge".
•
Interchangeable components. SpinNet™ micro-sprinklers can be disassembled manually should they
need cleaning - no tools are required.
•
Acid resistant (AA) raw materials, thus allowing the application chemicals to pass through the system.
•
The system can be cleaned by application of suitable acid treatments.
WARNING
When handling acid, always observe the product safety instructions and avoid acid coming in
contact with the crop, the soil/substrate and the environment.
•
Excellent distribution uniformity on a full coverage irrigation system.
•
It is strongly recommended to connect the SpinNet™ to the distribution pipe with a SSPE (super soft PE)
micro-tube, a specifically designed stabilizer and AD (anti-drain) valve (anti-drain) that will prevent
distribution pipe drainage.
Performance
Nozzle
Nozzle
size
(mm)
Constant
K*
Exponent
X*
050
0.90
10.5
0.5
070
1.07
14.0
0.5
090
1.22
18.9
0.5
120
1.44
25.0
0.5
160
1.76
33.6
0.5
200
1.86
41.4
0.5
Wetted diameter (meter)*
Swivel (rotor)
code color ›
LR
FLT
SR
Nozzle
050
N/A
N/A
5.5
070
8.0
6.0
6.0
090
8.5
6.5
6.0
120
8.5
7.0
6.5
160
9.5
8.0
7.0
200
10.0
8.5
7.0
Wetted diameter
*Wetted diameter at 1.8 meter height above
surface and 2.5 bar working pressure. At least
0.5 mm/h
*The constant K and exponent X enable real flow
rate calculations at different working pressures
using the formula:
Q (l/h) = K*(P(meter)^X)
.
Flow rate calculation
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