Omega Seawater

Omega Seawater

features:
-Based on Amiad’s proven suction scanning screen filtration technology
-Highly efficient self-cleaning mechanism; fine filtration performances, down to 10 micron
-Significant cost reduction per filtered cubic meter of water
-Smaller footprint
-Higher flow per unit
-ASME / ATEX / IECEX design optional
-Applications: Membrane Protection, Ballast Water, Oil&Gas, Industrial Water and Irrigation

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How the Omega Filter Works
General
The Amiad Omega Series are automatic filters, with multiple screens operated by a single electric self-cleaning mechanism. The “Omega” filters range in flowrates of up to 5,000 m³/h (22,000 gpm) and from 10-500 micron filtration degree. Inlet/Outlet flanges are available from 8”-32” diameter.

The Filtration Process
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 multi screen surface causes a filter cake to develop, with a corresponding
increase in the pressure differential across the multi-screens. A pressure differential switch senses the pressure differential and when it reaches a pre-set value, the self-cleaning process begins.

The Self-Cleaning Process
Cleaning of the filter is carried out by multiple suction scanners with an option for SLN (Spring Loaded Nozzles) which scans across the multi-screens by a common gear operated by up to 3 electric motors. The DP switch signals to open the exhaust valves creating a high velocity suction stream at the nozzle tip which “vacuums” the filter cake from the multi screens.

During the self-cleaning process, which takes approximately 25 seconds, filtered water continues to flow downstream.
 
The Control System
The Omega operation and cleaning cycle is controlled and monitored by a Programmable Logic Control (PLC).
The PLC allows maximum flexibility in control options and is provided with a wide range of control options from a local
independent stand alone controller to a fully integrated with the customer central control system. During the self-cleaning cycle the PLC controls a solenoid that operates the exhaust valves by means of an hydraulic command or compressed air.

The self-cleaning cycle begins under any one of the following conditions:
  1. Receiving a signal from the Pressure Differential Switch
  2. Time interval parameter set at the control board
  3. Manual Start

The control board also provides:
  • Optional continuous flush mode
  • Flush cycles counter
  • Alarm output – may be used to open a bypass, shut-off a pump, etc.

Omega Models:
Amiad’s Omega product line consists of the following models:
  • Omega I Standard 13,500 cm2 & Enlarged (E) 18,000 cm2
  • Omega II Standard 27,000 cm2 & Enlarged (E) 36,000 cm2
  • Omega III Standard 54,000 cm2 & Enlarged (E) 72,000 cm2
  • Omega IV Standard 81,000 cm2 & Enlarged (E) 108,000 cm2

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