FILTRAMAS - Model FB -Self-cleaning Filter

They are usually used to filter treated process and cooling water. The filter can operate in continuous or intermittent mode depending on the application. Once the fluid to be filtered has been characterized, the mesh size is selected with the largest possible dimension; for example, if the FB Filter is to be used as protection for another element, the pass light should be half the smallest hole to protect.

The fluid to be filtered is led to the central space of the filter, limited in all its surroundings by a basket that holds the filtering element: mesh or perforated plate in AISI-304 or 316, coming out through it by the opposite flange. The solids retained by the filter screen are sucked in by the hollow rotating arm, equipped with a sweeping skid, and evacuated by the backwash effect, exiting to the outside through the central axis. The arm movement is achieved by a gear motor of suitable power. The output to the outside of the shaft to couple to the gearmotor is sealed by a cable gland.

The FB filter can be operated continuously or intermittently, depending on the nature and concentration of solids contained in the fluid to be treated. In the case of intermittent operation, the filter incorporates an automatic purge valve placed in the drain. This valve can be activated by a timer system or a differential pressure unit, with two indicators placed at the inlet and outlet respectively. However, we recommend its use in timed mode, combined with the differential pressure system that would activate an emergency flushing in the event of an unforeseen volume of solids clogging the screen.

• Model W (wedge profile): It consists of a robust stainless steel cylinder in the form of a cage covered with triangular wire welded to the support. The solids have only two contact points, which prevents clogging during backwashing. The filter is very robust and has a long service life.
• Model P (pleated basket): The filtering cylinder is provided with folds that multiply the available filtering surface and provide spaces for solids accumulation, thus avoiding its dragging along the cleaning skate.

• Model C (cylindrical basket): The cylindrical filter screen is fixed to an inner cage, which can be made of stainless steel, bronze or plastic.

• Continuous operation due to its continuous cleaning system does not require process stops for backwashing.
• Low operating cost due to the low electrical power used.
• Minimum rejection rate.
• Low maintenance cost due to few components subject to wear; simple disassembly operations.
• Optimized dimensions for high flow rates.
• SELF CLEANER FILTER.

FB self-cleaning filters are specially designed for the demanding filtration of high flow rates in municipal and industrial applications.

• Paper industry
• Metallurgical industry
• Food industry 
• Textile industry
• Chemical industry
• Mining industry
• Energy production plants
• Wastewater treatment (urban and industrial)
• Heat exchangers
• Bearing cooling.
• Cooling in steel mills.
• General nozzle protection.
• Service water.
• Pretreatment for microfiltration.
• Sprinkler irrigation.
• Drinking water intakes from wells and rivers