Based on on-site practical operations, it is divided into three parts: core determination basis, intuitive appearance judgment, and auxiliary condition determination, and ranked by priority. It can be directly used for on-site inspections:
\n1. Primary determination: Pressure difference resistance (the most authoritative, industry standard)
\nRecord the initial resistance of the filter element (the stable pressure difference after the new filter element is installed and running normally, usually 180-220 Pa).
\nWhen the running resistance reaches twice the initial resistance, it must be replaced.
\nIf the pressure difference rises rapidly in a short period of time, it indicates that the filter element is severely clogged \/ damp, and it should be replaced in advance.
\n2. Intuitive appearance & seal check (can be checked with the naked eye)
\nFilter material body: Large areas of blackening on the surface, heavy dust accumulation, holes, cracks, and loose fibers, immediately replace.
\nDamp \/ moldy: Water stains, mold spots, and odors on the filter material and frame, directly replace (the filter material’s filtration efficiency will permanently decrease after getting damp).
\nSealing part: Failure of the sealing strip between the filter element and the frame, filter element deviation, repeated adjustments still leak air, replace the filter element and the sealing strip simultaneously.
\n3. Leak detection & cleanliness determination (must be checked for compliance acceptance)
\nDOP\/PAO integrity leak detection: Detecting leakage points and non-compliant filtration efficiency, replace the filter element.
\nClean area indicators: Dust particles, suspended bacteria, and settled bacteria in the area continue to exceed the standard, after excluding other system problems, replace the filter element.
\n4. Operating conditions & usage duration (auxiliary reference)
\nThe recommended usage period for the corresponding environment (generally no more than 12 months at the longest), even if the pressure difference is normal, it is recommended to plan for replacement.
\nIf the air flow in the outlet is obviously uneven and the equipment makes abnormal noises, after troubleshooting and confirmation that it is due to filter element blockage, replace it immediately.<\/p>","protected":false},"excerpt":{"rendered":"
Based on on-site practical operations, it is divided into three parts: core determination basis, intuitive appearance judgment, and auxiliary condition determination, and ranked by priority. It can be directly used for on-site inspections: 1. Primary determination: Pressure difference resistance (the most authoritative, industry standard) Record the initial resistance of the filter element (the stable pressure […]<\/p>","protected":false},"author":12,"featured_media":5443,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[92],"tags":[],"class_list":["post-5514","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry-technology"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.bacintl.com\/fr\/wp-json\/wp\/v2\/posts\/5514","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.bacintl.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.bacintl.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.bacintl.com\/fr\/wp-json\/wp\/v2\/users\/12"}],"replies":[{"embeddable":true,"href":"https:\/\/www.bacintl.com\/fr\/wp-json\/wp\/v2\/comments?post=5514"}],"version-history":[{"count":1,"href":"https:\/\/www.bacintl.com\/fr\/wp-json\/wp\/v2\/posts\/5514\/revisions"}],"predecessor-version":[{"id":5515,"href":"https:\/\/www.bacintl.com\/fr\/wp-json\/wp\/v2\/posts\/5514\/revisions\/5515"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bacintl.com\/fr\/wp-json\/wp\/v2\/media\/5443"}],"wp:attachment":[{"href":"https:\/\/www.bacintl.com\/fr\/wp-json\/wp\/v2\/media?parent=5514"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bacintl.com\/fr\/wp-json\/wp\/v2\/categories?post=5514"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bacintl.com\/fr\/wp-json\/wp\/v2\/tags?post=5514"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}