For HNO3-HF processes demanding greater flow and solids removal from hot rolled products, or from cold rolled products where the concentration of suspended solids are higher than that found in typical cold rolled finishing applications. ASRA-SAFU is ideally suited for flat rolled, tubular goods and long products finishing processes.
The ASRA-SAFU is an advanced two-stage filtration system, using two proven filtration methods – ASRA sludge removal and cross-flow microfiltration. The ASRA-SAFU is a continuous filtration system, capable of delivering high volumes of filtered acid solution with very low acid loss and waste-water generation. Capable of handling high total suspended solids feeds that render sand or media filters virtually inoperable, the ASRA-SAFU can operate on mixed HNO3-HF process at temperatures up to 60C, delivering a filtrate quality of 1 micron.