36
UPSIDE-DOWN MICRO-EMITTERS
HANDBOOK
MICRO-SPRINKLERS/EMITTERS ASSORTMENT
MistNet™
Description
A gentle mister designed especially for under plant cooling and humidifying in
greenhouses (completion of the CoolNet Pro™ family): Droplet size: 120 microns, at a
working pressure of 3.0 bar.
It is offered uniquely as a single body, single nozzle unit that diffuses very small droplets
in a wide distribution angle (150-165 degrees). Intended to be installed in an upwards
position beneath the crop.
Applications
For growers of very sensitive crops (e.g. roses, orchids, etc.), the main problem with water droplets is that
if they come in contact with the upper part of the plant (i.e. the marketed part - foliage and flowers), upon
evaporation, the salt contained in the water leaves, small white spots on the plants, thereby lowering their
market value.
When the CoolNet Pro™ is used above the crop for cooling or humidifying and the water carbonate
content is high (see Netafim™
Drip Irrigation System Maintenance Handbook
, page 40), it is highly
recommended to install a reverse-osmosis filtration system upstream of the misting system.
Alternatively, the MistNet™ can be used without reverse-osmosis filtration system. It provides an excellent
solution for cooling and humidifying in greenhouses where utmost confidence is required to ensure not a
single droplet of water is exposed to the upper foliage or the flowers.
The difference between the nozzle of the MistNet™ and that of the CoolNet Pro™ (except for their flow
rates) is in their delivery angle. The CoolNet Pro™ has a delivery angle of 40-45 degrees, so that it can
reach as far as possible and thereby distribute water to as large a volume of air as possible. If this emitter
is positioned in an upwards position (for which it is not intended) the jet will reach relatively high above the
emitter head and may wet the upper part of the plant.
The MistNet™ has a delivery angle of 150-165 degrees. When placed in an upwards position under the
crop it spreads most of the water sideways, and very little water upwards. Therefore, the upper part of the
plant remains dry.
CoolNet Pro™
(in an upwards position)
MistNet™
*The illustration is for demonstration purposes only (proportions are not accurate).
Nozzle
Summary of Contents for COOLNET PRO
Page 47: ......
