General

The Filtermat are automatic, self-cleaning filters, ideal for stand-alone installation sites. Used for the filtration of cooling water, spray water, rivers and many other applications.

Characteristics :

Max. 1500 m³/h/unit
80 to 800 µm
Min. 2 bar
ST 37-2 + epoxy, Stainless steel optional

The Filtration Process :

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.

The Self-Cleaning Process : When the pressure differential across the screen reaches a pre-set level of 0.5 bar (7 psi), the Filtermat starts the self-cleaning process by opening the internal flush valve. This results in the release of a back-flush stream flowing through the nozzles out of the hollow suction-scanner shaft to the turbine and to the drainage pipe.

Benefits :

• Reliable operating mechanism
• Simple construction and easy maintenance
• Ideal solution for stand-alone filtration requirements
• Automatic flushing according to pressure differential
• No interruption of downstream flow during flushing
• High reliability and durability
• Hydraulic or electronic control