Grit classifiers

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Defender® grit classifiers are used in the second phase of pre-treatment of raw water to extract suspended solids (gravel, sand and mineral particles). The purpose of the treatment with the offered equipment is to prevent clogging of the channels and pipelines, to protect the rest of the equipment in the installation from abrasive impact and to alleviate the load in the operation of the next treatment facilities. The grit classifiers consist of a chamber for entering the raw water (made of polyester, reinforced with fibreglass (FRP) or stainless steel) and a hollow chute with an installed screw that captures, retains and transports solid particles. Advantages of the offered equipment are its easy cleaning and maintenance, convenience for inspection through a hatch, design preventing problems with congestion and air tightness and high efficiency (removes up to 97% of sand particles up to a diameter of 0.15 - 0.2 mm).


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