Automatic Filter

Amiad Mini Sigma Filter

Amiad’s Mini Sigma filter is the newest addition to the Sigma family. It is a small and lightweight yet durable filter;quick and easy to install, simple to operate, and requires minimal maintenance. Innovative automatic self-cleaning filter. Lightweight and durable with maximum installation flexibility.

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Amiad's ADI-P Controller

Control Mini Sigma with your mobile device!

ADI-P Controller


The Filtration Process

  • Raw water enters through the filter’s inlet and passes first through the pleated coarse screen which catches large debris and sediment. The unique pleated design of the coarse screen provides a larger screen area, increasing the filter’s capability to handle high dirt loads of large particles. The water then continues to flow through the filter and passes through the inner fine screen which catches the remaining smaller particles.

The Control System - Amiad’s NEW ADI-P Controller

  • Amiad’s ADI-P controller offers a one-of-a-kind monitoring and control functionality. The controller interacts with Amiad’s advanced, user-friendly app that provides detailed filtration performance data on your mobile phone device.The self-cleaning mechanism is controlled and monitored by the ADI-P controller. The self-cleaning cycle is triggered by an integrated DP switch.

  • The ADI-P controller and mobile app also provide:

  • brightness_1DP and flush cycle counters

  • brightness_1Alerts – low/high pressures, low battery

  • brightness_1Reports and performance history data

The Self-Cleaning Process

  • The self-cleaning cycle is initiated by any one of the following conditions:

  • brightness_1Signal from the DP switch, pre-set at 7 psi (0.5 bar)

  • brightness_1Time interval parameter set at the controller

  • brightness_1Manual start, triggered by the ADI-P mobile app (within Bluetooth range) or via electronic controller keypad

  • brightness_1Flushing duration set with the ADI-P app

  • The flush valve opens to atmosphere creating a strong suction force at the scanner nozzles, effectively removing dirt particles from the screen and discharging them from the filter


  • Amiad’s Mini Sigma Series consists of the following models:

  • brightness_12" Mini Sigma for up to 30 m3/h (132 gpm)

  • brightness_13" Mini Sigma for up to 50 m3/h (220 gpm)

  • brightness_14" Mini Sigma for up to 80 m3/h (352 gpm)

  • brightness_1Reliable and durable

  • brightness_1Amiad's unique suction-scanner cleaning technology

  • brightness_1Modular design with various installation configurations

  • brightness_1Polymeric filter - corrosion free

  • brightness_1Low water and energy consumption

  • brightness_1Compact design and small footprint

  • brightness_1Easy installation and low maintenance

  • brightness_1Ideal for many landscape and agricultural irrigation applications

  • brightness_1Amiad’s innovative and user friendly ADI-P electronic controller, operated by a mobile app for advanced monitoring capabilities

Parameters 2" Mini Sigma 3" Mini Sigma 4" Mini Sigma
Max. flow rate (130µ) 30 m3/h (132 gpm) 50 m3/h (220 gpm) 80 m3/h (352 gpm)
Min. operating pressure when cleaning 1.5 bar (22 psi) 1.5 bar (22 psi) 1.5 bar (22 psi)
Max. operating pressure 8 bar (116 psi) 8 bar (116 psi) 8 bar (116 psi)
Filtration area 1,200 cm2(186 in2) 1,600 cm2(248 in2) 2,400 cm2(372 in2)
Inlet/Outlet diameter 2" (50 mm)BSPT/NPT 3" (80 mm)Victaulic/Universal flange 4" (100 mm)Victaulic/Universal flange
Weight (Empty) 16 kg (35 lbs) 20 kg (44 lbs) 23 kg (51 lbs)
Control power supply 4 x AA type 1.5V batteries and/or External 7-14 VDC 4 x AA type 1.5V batteries and/or External 7-14 VDC 4 x AA type 1.5V batteries and/or External 7-14 VDC
Solenoid 9-12 VDC latching solenoid 9-12 VDC latching solenoid 9-12 VDC latching solenoid
DP switch Integral sensors Integral sensors Integral sensors
Exhaust valve 1.5" (40 mm) BSPT/NPT 1.5" (40 mm) BSPT/NPT 1.5" (40 mm) BSPT/NPT
Flushing time 10 seconds 10 seconds 10 seconds
Reject water volume per flush cycle 24 liters (6.3 gallons) 26 liters (6.8 gallons) 28 liters (7.4 gallons)
Flushing flow rate 8.7 m3/h (38.3 gpm) 9.6 m3/h (42.2 gpm) 10 m3/h (44 gpm)
Filter housing and lid RPA (reinforced polyamide) RPA (reinforced polyamide) RPA (reinforced polyamide)
Screens Molded weavewire, stainless steel 316L Molded weavewire, stainless steel 316L Molded weavewire, stainless steel 316L
Cleaning mechanism PBT (polybutylene) PBT (polybutylene) PBT (polybutylene)
Exhaust valve All polymeric All polymeric All polymeric
Control command tubing PE (polyethylene) PE (polyethylene) PE (polyethylene)

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