Choosing a cartridge filter element for an industrial system requires more than selecting a micron rating. The following seven factors can help organize the selection process. For an overview of housing types, configurations and selection factors, see our Industrial Cartridge Filter Housing Guide . 1. What needs to be removed? Start with the contaminants. Identify the type of particles and the required filtration result before choosing the element. 2. What micron rating is required? The micron rating should reflect the actual filtration requirement. A finer element isn't automatically the best option. It can increase flow resistance and may require more frequent replacement when the filtration requirement does not justify it. 3. What is the process fluid? Water, chemicals, oils and process liquids may require different filter materials. Chemical compatibility should be checked for the filter media, support structure and sealing components. 4. What is the required flow? Flow rate a...
In municipal wastewater treatment, pump blockages remain one of the most common causes of maintenance work and operational interruptions. Many facilities receive wastewater containing stones, branches, leaves, plastics, and other coarse solids. If these materials are not removed effectively during pretreatment, they can enter pumping stations and downstream treatment units, creating recurring maintenance problems. A recent municipal wastewater project in Japan provides a practical example of how improved screening can help address these issues. The treatment plant had been experiencing frequent pump clogging and increasing maintenance costs. To improve solids removal before wastewater reached the pumping station, the facility installed a wedge wire Hydrosieve Screen as part of its pretreatment process. Unlike powered screening equipment, the Hydrosieve operates using gravity flow and a static wedge wire screening surface. This design allows wastewater to pass through while retaining l...