How the Sigma Filter Works
General
The Amiad “Sigma” filter is an automatic filter, with multiple screens operated by a single hydraulic turbine mechanism. With a capacity up to 120 m3/h (528 gpm) and from 80-300 micron filtration degree. Inlet/Outlet connections are 100 mm (4") diameter, and exhaust valve is 50 mm (2").
The Filtration Raw water enters from the filter inlet and passes through the multi-screens. Clean water flows through the filter outlet. The gradual dirt buildup on the inner screen surface causes a filter cake to develop, with a corresponding increase in the pressure differential across the multi-screens. A pressure differential switch (hydraulic or electric) senses the pressure differential and when it reaches a pre-set value, the self-cleaning process begins.
The Control System
The Sigma operation and cleaning cycle is controlled and monitored by a hydraulic rinse control, or an electronic battery /AC controller. During the self-cleaning cycle the rinse control operates the exhaust valve by means of an hydraulic command, and when the cycle is complete, it automatically closes the exhaust valve and waits for the next cycle. In the case of the electronic controller, the self-cleaning cycle is triggered by the DP switch, then the AC or DC controller switches the solenoid to open or close the exhaust valve by means of a hydraulic command, when cycle is complete, the controller will shut the exhaust valve and wait for another cleaning command.
The self-cleaning cycle begins under any one of the following conditions:
1. Receiving a signal from the Pressure Differential Device - which is preset at 0.5 bar.
2. Time interval parameter set at the controller (electronic controller only).
3. Manual Start, triggered by 3 way ball valve or via electronic controller keypad.
The electronic controller also provides:
• Flush cycles counter
• Alerts output – low battery, DP cycle
Arkal Amiad Sigma self cleaning filtration
NEW
Multi-screen, polymeric, self-cleaning Sigma Pro Series filter combining Amiad’s suction-scanning technology with a unique mechanism and innovative design 2" 3" 4" 6" and 8"
30-120 mesh 50-180 micron
20-280 m3/h
flow rates
(132-528 gpm) (220-792 gpm) (220-1,233 gpm)
inlet/outlet 100 mm 150 mm 200 mm
diameters 2" 3" 4" 6" and 8"
filtration How the Sigma Filter Works
General
The Amiad Sigma filter is an automatic filter, with multiple screens operated by a single hydraulic turbine mechanism.
With a capacity up to 120 m3
/h (528 gpm) and from 80-300 micron filtration degree. Inlet/Outlet connections are
100 mm (4”) diameter, and exhaust valve is 50 mm (2").
The Filtration
Raw water enters from the filter inlet and passes through the multi-screens. Clean water flows through the filter
outlet. The gradual dirt buildup on the inner screen surface causes a filter cake to develop, with a corresponding
increase in the pressure differential across the multi-screens. A pressure differential switch (hydraulic or electric) senses the pressure differential and when it reaches a pre-set value, the self-cleaning process begins.
The Control System
The “Sigma” operation and cleaning cycle is controlled and monitored by a hydraulic rinse control, or an electronic battery /AC smart phone BT controlled controller.
During the self-cleaning cycle the rinse control operates the exhaust valve by means of an hydraulic command, and when the cycle is complete, it automatically closes the exhaust valve and waits for the next cycle. In the case of the electronic controller, the self-cleaning cycle is triggered by the DP switch, then the AC or DC controller switches the solenoid to open or close the exhaust valve by means of a hydraulic command, when cycle is complete, the controller will shut the exhaust valve and wait for another cleaning command.
The self-cleaning cycle begins under any one of the following conditions:
1. Receiving a signal from the Pressure Differential Device - which is preset at 0.5 bar.
2. Time interval parameter set at the controller (electronic controller only).
3. Manual Start, triggered by 3 way ball valve or via electronic controller keypad.
The electronic controller also provides:
• Flush cycles counter
• Alerts output – low battery, DP cycle
Arkal Amiad Sigma self cleaning filtration
NEW
Multi-screen, polymeric, self-cleaning Sigma Pro Series filter combining Amiad’s suction-scanning technology with a unique mechanism and innovative design in 2" 3" 4" 6" and 8"
30-120 m /h50-180 m /h50-280 m /h
flow rates
(132-528 gpm) (220-792 gpm) (220-1,233 gpm)
inlet/outlet 100 mm 150 mm 200 mm
diameter (2" 3" 4" 6" and 8"
filtration degrees 80-500 micron
min. operating pressure during flush cycle 1.5 bar/22 psi
max. operating pressure 10 bar (145 psi)
Features:
Reliable and durable •Compact design and small footprint
• Proprietary suction-scanning cleaning technology •Easy installation and maintenance
• Large filtration area•Ideal for open-field irrigation, landscaping,
• Polymeric housing - corrosion and fertilizer resistant, greenhouse and aquaculture applications
• Low water and energy consumption
• AC/DC ADI-P Smart phone operated controller.
4" On-line Mini Sigma
Packaging Physical Weight 24 Kg.
Packaging Dimensions: 162 x 38 x 52 cm
1/6 Air Freight weight 51 Kg.
1/5 Courier weight 61
Thermal cover for mini Sigma products. NEW
Cover help to diminish possible freezing damages.
Kg.