The AutoFilt~R RF3 automatic back-flushing filter for process technology is designed for continuous and maintenance-free filtration in all sectors of the steel industry. It is a self-cleaning system for extracting particles from low-viscosity fluids. Its rugged construction and automatic back-flushing capability provide a major contribution to operational reliability and also reduce operating and maintenance Costs. The slotted-tube filter elements with filtration rates of 50 to 3000 mu m ensure effective separation of contaminating particles from the process medium. Automatic cleaning starts as soon as toe elements become contaminated. The filtrate flow is not interrupted during the back-flushing procedure.