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EBS Filters

EBS Filters - The largest automatic self-cleaning filter for fine filtration self-cleaning filter for fine filtration

Fitlers

Automatic Disc Filter

Highlights :
Flow rates - up to 7200 m3/h(32000 US gpm)
Filtration degrees - 800-10 micron
Water for cleaning - less than 1% of the total flow
Minimum operating pressure - 2 bar (30 psi)

Large filtration area, reliable operating mechanism and simple construction make the EBS filter the ideal solution for filtration of high-flow and poor quality water to very finefiltration degrees

• Automatic flushing according to pressure differential and/or time
• No interruption of downstream flow during flushing
• Robust and reliable self-cleaning mechanism even on marginal operation conditions
• Minimal volume of reject water allows excellent operation during flush mode
• Applications: Water supply systems, Irrigation systems, Cooling Water, Wastewater Treatment, Industrial Pre-Filtration, etc.
• Industries: manufacturing, mining, water and wastewater treatment plants, turf and agriculture, etc.

Standard Features:
• Securely stacked discs for micron-precise filtration solids
• Corrosion resistant spine
• Innovative depth filter design captures and  retains large  amounts of Solids for longer filtration cycles
• Short, efficient backwash process conserves water and energy
• Easy and simple operation
• Long-term operation with minimal maintenance

Filtration Process:
The color coded micron sized filtration discs are stacked on the SpinKlin® spine and assembled according to predetermined water filtration requirements. During filtration, the discs are compressed by means of preloaded spring and differential pressure, forcing the water to pass through the grooved discs surface, thus trapping the solids.

Backwash Process:
Activated by a predefined time command or differential pressure, the system enters backwash mode. The inlet valve port shuts as the drain port opens. During the backwash process, pressure is released and the spine's piston rises, releasing the compression on the discs. Tangential jets of clean water are then forced through the nozzles positioned along the spine. At this stage the discs spin freely, loosening the trapped solids which are then flushed out.


How the EBS Filters Work

 


General
The Amiad EBS Series are automatic filters, with an electric self-cleaning mechanism.
The "EBS" filters range in flow-rates of up to 7200 m³/h (32000 US gpm), with screens designed ranging
from 800-10 micron filtration degree. Inlet/Outlet flanges are available from 8"-36" diameter.

The Filtering Process
Raw water enters from the filter inlet (1) and passes through the screen (2). Clean water flows through the filter outlet (3). 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 screen. A pressure differential switch (4) senses the pressure differential and when it reaches a pre-set value, the cleaning process begins.

The Self-Cleaning Process Cleaning of the filter is carried out
by the suction scanner (5) which spirals across the screen, the open exhaust valves creates a high velocity suction stream at the nozzle tip which "vacuums" the filter cake from the screen. During the self-cleaning process, which takes approximately 30 seconds, filtered water continues to flow downstream.

The Control System
The "EBS" operation and cleaning cycle is controlled and monitored by a Programmable Logic Control (PLC). The PLC allows maximum flexibility in control options and has many features that can be incorporated per customer's needs. During the self-cleaning cycle the PLC controls a solenoid that operates the exhaust valve by means of a 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.


"EBS" Models

Amiad's "EBS" product-line consists of the following models:
• EBS-10000 for up to 1200 m³/h (5300 US gpm)
• EBS-15000 for up to 1800 m³/h (8000 US gpm)
• Mega EBS 40000 which consists of four EBS-10000 screen elements for up to 4800 m³/h (21100 US gpm)
• Mega EBS 60000 which consists of four EBS-15000 screen elements for up to 7200 m³/h (32000 US gpm)