产品名称：SANDquartzitefilters

In order to protect the water system (valves, pressure switches, taps, boilers, etc.) it is necessary to place a filter at the system supply inlet to stop all impurities. If the water contains only sand or small quantities of foreign bodies, normal filter cartridges are used; if clay, silt and/or colloidal substances are present in the water, multi-layer, different size quartz sand filters are used, capable of stopping big quantities of impurities. The SAND clarification filters by ATLAS FILTRI consist of a column containing a permanent multi-layer filtering bed; to get rid of the impurities and restore the filter efficiency, just carry out counter-current rinsing at regular intervals. This is done automatically by the controlling head, controlled by an electronic displacement timer/control.
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