Esab india along with ab ph nederman & co, sweden has manufactured low vacuum filters which can filter up to 99.97% welding fumes, metal oxides, talcum powder, pigments, pharmaceutical powders, lime and grinding dust. More dangerous the air pollution, more critical is the filtration equipment. Esab has applied the concept of capture at source for a long time in the several filters which can handle air volumes ranging from 1000 m3/hr to 10,000 m3/hr. The company offers portable, mobile and fixed models depending on the application or use along with smaller filters having replaceable filter cartridge and larger units with cleanable and reuseable filters with long life. The larger units of low vaccum filters can be automatically cleaned by mechanical flaps or pulse jet compressed air sequentially on line even as the unit is running. The company provides mobile filters fitted with self supporting extraction arms. The larger models are connected to centralised ducts. The low vaccum filters can give simple solution to a difficult problem and are reliable as there is no need for supervision and complicated maintanence.
