Applications
History of nonwoven roll media for metalworking coolant filters
This article provides a brief history on the use of nonwoven roll media for metalworking coolant filters. These filters are typically employed in machining, grinding, rolling, drawing and forming applications. They apply to all types of flatbed filters – gravity, vacuum and pressure – which have unique aspects compared to other types of filters. These …
Despite COVID challenges, filtration & separation industry joins for successful convention in Shanghai
The 8th Filtration & Separation Asia (FSA) and the 11th China International Filtration & Separation Exhibition (CIFSE) was held December 9-11, 2020, in Shanghai, with industry players joining to represent the filtration and separation industry as the world continues to struggle with the impacts of the coronavirus (COVID-19) pandemic. Exhibitors & visitors The FSA + …
Rosedale Products brings its diversified filtration capability to bear
In this issue, we interview Deborah Rosaen Lunde, president at Rosedale Products, Inc., a company with more than 50 years of experience. Rosedale is a filtration technology developer primarily in the field of liquid filtration systems and waste minimization products for customers around the globe. Rosedale technicians help customers find the best optimized approaches to …
Considerations in particle counter and PM2.5, PM10 measurements
There has been increasing interest in specifying the efficiency of ventilation filters at PM2.5 and PM10. PM is a statutory measure of outdoor air quality determined according to strictly specified procedures, or their approved equivalents. In this paper, an attempt is made to relate the measured differences to published theoretical comparison for single particles. The …
Criteria to consider when choosing bag filtration technology (Part II)
Part I of this series introduced the filter media of modern bag filtration technology and the relevant criteria for selecting components of a bag filtration system. Here is a summary of the key points: Characteristics and size of particles or solids to be removed (absolute versus nominal) When cleaning a liquid, only certain contaminants may …