MICROKLIN

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Microklin HSF Series – HYDRAULIC SCREEN FILTER


The Filtration Process

Hydraulic Self-cleaning with filters with no requirement of external source of power

The filtration process begins when raw water flows through the filter inlet into the coarse screen which pre-filters the water to protect the cleaning mechanism from large debris. The water then passes through the inner surface of the fine screen where dirt particles are trapped and accumulate inside the filter, while clean water flows through the filter outlet. The gradual buildup of dirt on the inner screen surface causes a filter cake to develop which causes an increase in the pressure differential across the screen.

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The Self-Cleaning Process

When the pressure differential across the screen reaches a pre-setlevel of 7 psi (0.5 bar), the filter starts the self-cleaning process by opening the internal flush valve. This results in the release of aback-flush stream flowing through the nozzles out of the hollow suction-scanner shaft to the turbine and to the drainage pipe.

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