The precipitation of emulsion and oil mist on floors, walls, and machines in metal processing operations indicates inadequate functioning of extraction systems. An unpleasant work atmosphere, health and economic damages are usually difficult to detect, but are often underestimated factors of production costs. In most cases the deficiencies are not only due to insufficient plant maintenance, but also the fact that the extraction system only has an alibi function, because the defined and legally required filtration of exhaust air does not take place in an appropriate manner. This is the conclusion the Donaldson® experts come to when doing surveys in metal-cuttings operations.
Intensive consultation and the employment of technically mature extraction systems, which provide the most up to date application orientated filtration technology, can offer the required corrective action. Donaldson, one of the leading manufacturers of exhaust air purification systems, has developed a complete oil mist separator range - Donaldson Dryflo® system. Technically and economically, Dryflo offers the optimal solution for every application, diverse types of steam/aerosol, and varying volume flows, whilst conforming to local requirements.
For a better assessment of the individual oil-mist separation solutions, it is helpful to compare the different systems Donaldson offers.
When comparing the different systems, the superiority in the degree of separation offered by Donaldson Dryflo® oil-mist separators can clearly been seen. This, amongst other things, is due to Donaldson’s intensive research and development as well as the worldwide experience in the most diverse areas of application and regulations. One of the substantial factors is the high-efficiency, multi-level separation of the proprietary developed Dryflo filter elements, which have (in accordance with NF X44-606, tested by CETIAT) an efficiency rate of 99,8% related to total steam and aerosol ratio. It is remarkable that as time goes by there is even an increase in the separation efficiency and this level remains at a high during the entire life span of the filter element, whereas with other systems, the performance directly decreases.
The expertise and experience of the Donaldson engineers, combined with the practical application test performed with the Donaldson Dryflo oil-mist separator helps to ensure adherence to the toxic concentrations in the working environment (MAK-values), the recommended emission regulations, as well as the requirements for pure-air feedback according to BGR 143. Thus, the Dryflo® clearly enables a reduction in operating costs due to the high efficiency and the possibility of pure air feedback.
Donaldson Filtration Asia Pacific is headquartered in Singapore. Donaldson Company, Inc., headquartered in Minneapolis, Minn., is a leading worldwide provider of filtration systems and replacement parts. Founded in 1915, Donaldson is a technology-driven company committed to satisfying customer needs for filtration solutions through innovative research and development. Donaldson serves customers in the industrial and engine markets including in-plant air cleaning, compressed air and gas purification, power generation, specialty filtration, off-road equipment and trucks. Our 10,000 employees contribute to the company’s success at over 30 manufacturing locations around the world. In fiscal year 2004, Donaldson reported sales of more than $1.4 billion and grew earnings for the 15th consecutive year. Donaldson is a member of the S&P MidCap 400 Index and Donaldson shares are traded on the New York Stock Exchange under the symbol DCI. Additional company information is available at www.donaldson.com.
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