8.21
NETHERLANDS
Version 22.1
Version 22.1
Elektrolasfittingen
ELGEF+
Modular, all polymeric, automatic
disc filters with a patented self-
cleaning backwash mechanism
Mini Sigma is Amiad’s latest automatic self-cleaning
plastic filter. This durable, lightweight filter offers maxi-
mum installation flexibility. The filter can be used any
-
where in the water system, so filter screens no longer
have to be manually cleaned. Several filters can easily be
placed in parallel, so unlimited capacities are possible.
GENERAL
Amiad’s Mini Sigma filter is the latest addition to our
portfolio. It is a small, lightweight plastic filter with a long
service life. The filter is quick and easy to install, simple
to operate, and requires minimal maintenance. The Mini
Sigma filter was developed for use at low pressure, with
a capacity of up to 80 m
³
/h and with 7 filtration degrees
from 50-500 microns. The filter contains a 40-mm (1.5”)
flush valve. The low pressure and high contamination
storage capacity means savings in operational costs.
Open field application
Open field, frost mitigation and inline drip system
Suction rig
Mini Sigma
Open field, frost mitigation and inline drip system
Pump (+ Mixrite)
Mini Sigma
Greenhouse application
Roof cooling
Mini Sigma
Manual- / service line
Mini Sigma
Drain water pre-filtration (not in UV installations)
Mini Sigma
Low pressure humidification
Mini Sigma
Online drip systems (i.e.. Kameleon) and overhead sprinklers
After day storage tank
Mini Sigma (only when fertigation rig is equipped with SAF or media filter)
Mixing tank rig
Mini Sigma pre-filtration (filling pump) +
SAF main filter (system pump)
Media filter pre-filtration (filling pump) +
Mini Sigma filter (system pump)
Injection rig
Mini Sigma in combination with sand filter
Suction rig, UV decontamination
n/a (SAF filter application)
THE FILTRATION PROCESS
Untreated water enters through the coarse filter on
the inlet side, and then passes through the filter screen
from the inside and the clean water coming through the
outside of the screen then leaves the filter housing.
The gradual accumulation of contamination on the
inside of the filter screen creates a filter cake. As the
filter cake grows, so does the pressure difference across
the filter. A differential pressure switch (DP) detects the
differential pressure, and activates the cleaning process
when it reaches a pre-set level (0.5 bar).
OUTDOOR CULTIVATION APPLICATION
Mini Sigma filters can be used in outdoor irrigation as
the main filter for various irrigation systems, such as
spinkler irrigation and drip irrigation.
INDOOR CULTIVATION APPLICATION
For irrigation in greenhouses, Mini Sigma filters can
be used as a second/extra filter after, for example, an
SAF filter or media filter, or after the day tank.
Elektrolasfittingen
ELGEF+
Modular, all polymeric, automatic
disc filters with a patented self-
cleaning backwash mechanism
Mini Sigma filters
Version 22.1
Amiad
