Despite new developments in the pre-treatment area, the classical sand filtration also called media filtration is still very much in use in water treatment processes. Pressurized water typically flows top down, passing several material layers while leaving suspended particles in the process. In the multi-level filtration processes, anthracite or stones as well as sand are used to remove particles up to 10-15 μm from fluids. Due to the need of several operation modes, filters require numerous valves, bypass actuators as well as adapted measurement and control technology. Application-oriented system solutions from GF Piping Systems help to achieve these processes efficiently.
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