Скачать или смотреть Dirt Loading Curves: How to Find the Most Cost-Effective Air Filter - CAMFIL USA

Unfortunately, a filter's average pressure drop isn't published for new filters, as it depends on many different variables like filter quality, airflow velocity, dirt load, and the condition of the recirculated air. These conditions can vary, making the average pressure drop unique to each filter and its particular application. You can determine the average pressure drop of a filter by creating a dirt loading curve by recording the pressure drop readings over time. If you do this for different filters and different applications, you'll generate data to use for comparison purposes. Of these filters, number three would be the best choice because despite having a higher initial pressure drop, its average over seven months was only 0.4 inches compared to 0.76 for number one and 0.86 for filter number two.