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Automatic Self-Cleaning Filter | MCFM

• Flow rate up to 500m3/h
• Reject water volume: 8-20m3/h
• Filtration degrees from 3,000–30 micron
• Minimum operating pressure: 0.4 Bar

Features:

• Designed for heavy dirt load applications
• Unique cleaning mechanism, combining suction and jet scanning
• Outstanding results even in low pressure lines
• Electronically controlled self-cleaning algorithm responding to dirt load variations in real time
• Compact design supporting high flow rates
• Easy to install, operate and maintain

General
Amiad’s MCFM filters are automatic filters with an optional continuous self-cleaning mechanism designed for high flow rates and heavy dirt loads.
The MCFM models support flow rates of up to 500 m³/h (2,200 gpm), in filtration degrees of 3000 down to 30 micron and inlet/outlet diameters of 4”-10” (100-250 mm).
The filtration process begins when raw water flows into the filter inlet and through the Coarse Screen.
Here, the water is pre-filtered in order to protect the cleaning mechanism from large debris. The water then passes on the inner surface of the fine screen; dirt particles are trapped and accumulate inside the filter while clean water flows out of the filter outlet.

The Self-Cleaning Process
The self-cleaning process of the MCFM is unique in its ability to handle heavy dirt loads, combining high pressure suction and jet action by use of the Booster Pump, effectively removing debris from both sides of the screen. The process is operated by a programmable logic controller (PLC), with an algorithm that shifts the cleaning process, back and forth, between the following modes according to the actual real-time dirt load on the filter.

1. Pressure Differential and/or Time Interval – This mode is active in inconsistent, moderate dirt load conditions. The cleaning process is activated according to the reading of the pressure differential across the filter’s screen or by a pre-set time interval.
2. Continuous Flushing – This mode is active in persistent high dirt load conditions. The cleaning process is constantly active and the filter’s PLC controls its intensity.
3. Super Flush – This mode is active when the Continuous Flushing mode is not sufficient to maintain a proper low pressure differential across the screen. A secondary Super Flush Valve is activated to increase the suction force across the screen during flushing.
4. Reduced Flow – This mode is active (mostly momentary) when the Super Flush mode is not sufficient to maintain a proper low pressure differential across the screen. The flow of water through the filter’s outlet is reduced by the Reduced Flow Automatic Valve and therefore the pressure in the filter is increased. This enables the cleaning mechanism to cope with the exceptional momentary heavy dirt load.

The self-cleaning process continuously releases a small quantity of water to the atmosphere through the Flush Valve, creating a steady back-flush stream through the Fine Screen , the double acting Nozzles , the Collector Pipe, the Flushing Chamber and out of the filter through the flush valve.

The Electric Drive Unit rotates the collector pipe and the nozzles, while the Piston moves the collector pipe back and forth. This spiral movement of the collector pipe ensures that the suction nozzles sweep the entire inner surface of the fine screen.

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To contact Amiad Australia about Automatic Self-Cleaning Filter | MCFM use Get a quote.