{"id":5086,"date":"2026-01-27T08:33:04","date_gmt":"2026-01-27T00:33:04","guid":{"rendered":"https:\/\/www.bacintl.com\/?p=5086"},"modified":"2026-01-27T08:33:04","modified_gmt":"2026-01-27T00:33:04","slug":"how-to-extend-the-service-life-of-the-dop-laminar-transfer-window","status":"publish","type":"post","link":"https:\/\/www.bacintl.com\/fr\/how-to-extend-the-service-life-of-the-dop-laminar-transfer-window\/","title":{"rendered":"How to extend the service life of the DOP laminar transfer window?"},"content":{"rendered":"

To extend the service life of the DOP laminar transfer window, a systematic maintenance system needs to be established from six dimensions: standard operation, daily cleaning, regular maintenance, management of core components, environmental control, and emergency response to faults. The following is the specific implementation guide:
\n1. Standard operation: The foundation for a long service life
\nStrictly implement double-door interlock
\nEnsure that neither the inner nor the outer doors can be opened simultaneously. After each operation, confirm that the doors are fully closed and locked
\nDo not forcefully open or close the doors or hit the door frame with hard objects to prevent damage to the lock and sealing strips
\nImmediately stop using the window if the interlock fails, hang a “Under Maintenance” warning sign, and contact professionals for handling
\nStandardized item transfer
\nDo not place items that are too heavy, sharp, hot, or corrosive, to avoid scratching the inner wall or damaging the transfer table
\nPlace items centrally to reduce contact with the inner wall and prevent blocking the laminar airflow
\nClose the fan and ultraviolet lamp promptly after transfer to avoid unnecessary energy consumption and component wear
\nDOP detection operation standards
\nStrictly control the aerosol concentration and pressure during detection to avoid damaging the high-efficiency filter
\nThoroughly clean the interior of the transfer window after detection to prevent residual oil mist from affecting subsequent use
\n2. Daily cleaning: The key to preventing contamination and faults<\/p>\n\n\n\n\n\n\n\n
Cleaned areas<\/td>\nFrequency of cleaning<\/td>\nCleaning method<\/td>\nNotes for Attention<\/td>\n<\/tr>\n
Inner walls, transmission platform<\/td>\nAfter each use<\/td>\n\n

Dip the dust-free cloth in the neutral cleaner and wipe it, then rinse it clean with pure water.<\/p>\n<\/td>\n

Disable chlorine-based and acidic cleaners to prevent corrosion of the stainless steel surface.<\/td>\n<\/tr>\n
Filtre primaire<\/td>\nOnce or twice a week<\/td>\nNon-woven fabric filter: Soak in clean water \/ neutral detergent for 10-15 minutes, gently rub, then air dry; Metal mesh filter: Dust collection or water washing<\/td>\nDry it thoroughly before installation to prevent the growth of microorganisms due to moisture.<\/td>\n<\/tr>\n
Sealing strip<\/td>\nOnce a month<\/td>\nUse a dust-free cloth to wipe and check for any dust or oil stains.<\/td>\nReplace immediately if aging or deforming occurs.<\/td>\n<\/tr>\n
Pressure differential gauge, control panel<\/td>\nOnce a week<\/td>\nUse a dust-free cloth to gently wipe, to prevent water from entering the electrical components.<\/td>\nPrevent damage to the instrument’s accuracy<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

III. Regular Maintenance: Establish a Preventive Maintenance Plan<\/p>\n\n\n\n\n\n\n\n\n\n
Maintenance project<\/td>\nMaintenance cycle<\/td>\nMaintenance Content<\/td>\nCriteria for judgment<\/td>\n<\/tr>\n
Wind speed and cleanliness level testing<\/td>\nOnce a month<\/td>\nUse an anemometer and a particle counter to test the uniformity and cleanliness of the internal airflow.<\/td>\nThe wind speed should be \u2265 20m\/s, and the cleanliness should meet the design level (100-level \/ 1000-level)<\/td>\n<\/tr>\n
Pressure differential monitoring<\/td>\nDaily recording, monthly calibration<\/td>\nCheck the reading of the pressure differential gauge and compare it with the initial value.<\/td>\nWhen the pressure difference of the high-efficiency filter exceeds 1.5 to 2 times the initial value, consider replacing it.<\/td>\n<\/tr>\n
Sealing strip inspection<\/td>\nOnce a month<\/td>\nCheck for aging, deformation, and detachment, and measure the compression amount.<\/td>\n\n

Replace immediately if the compression is insufficient or cracks appear.<\/p>\n<\/td>\n<\/tr>\n

Inspection du syst\u00e8me \u00e9lectrique<\/td>\nOnce every quarter<\/td>\nCheck whether the wiring, switches and contactors are loose or overheating.<\/td>\nIf any abnormalities are found, tighten or replace immediately.<\/td>\n<\/tr>\n
Fan maintenance<\/td>\nOnce every six months<\/td>\nCheck the lubrication of the bearings, the tension of the belts (if any), and clean the fan blades.<\/td>\nWhen there is abnormal noise or abnormal temperature from the bearing, add the special lubricating grease.<\/td>\n<\/tr>\n
DOP\/PAO Leak Testing<\/td>\nOnce every 6 to 12 months<\/td>\nRelease aerosols upstream of the filter and scan the downstream to detect the leakage rate.<\/td>\nWhen the leakage rate exceeds 0.01% and cannot be repaired, replace the high-efficiency filter.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

IV. Core Component Management: The Key Step for Longevity Extension
\nFilter System Maintenance (Top Priority)
\nPrimary Filter: Must be replaced after 3-5 cleanings or after 3-6 months of use to prevent the decline in filtration efficiency and affect the lifespan of the high-efficiency filter
\nHigh-Efficiency Filter: Replace every 6-12 months in normal environments, and shorten to 3-6 months in high-pollution environments; replace immediately if the DOP leak test fails or the pressure difference reaches twice the initial value
\nWhen replacing the high-efficiency filter, wear clean gloves to ensure a tight fit with the frame, without any gaps, and evenly tighten the bolts
\nSealant Maintenance
\nSelect silicone rubber seals that are resistant to high temperatures and aging to ensure sealing performance
\nApply special sealant during installation to enhance the sealing effect
\nEmergency Handling: If the sealant falls off, temporarily stick it with high-temperature adhesive tape and replace the new sealant within 24 hours
\nFan and Motor Maintenance
\nRegularly clean the fan inlet and rotor to prevent dust accumulation that leads to a decrease in air volume and motor overload
\nAdd food-grade lubricating grease to the motor bearings every six months to reduce friction loss
\nWhen not in use for a long time, run the machine for 10-15 minutes per month to prevent rusting of the bearings
\nUltraviolet Lamp Maintenance
\nTest the radiation intensity quarterly. Replace the lamp tube when it is below 70% of the standard value
\nThe lamp tube has an average lifespan of 8,000 hours, and must be replaced when it expires. Avoid prolonged exposure to personnel to prevent skin and eye damage
\nV. Environmental Control: Creating Suitable Operating Conditions
\nTemperature and Humidity Control
\nMaintain the operating environment temperature between 10-30\u2103 and relative humidity between 40%-60%
\nAvoid direct sunlight and heat sources to prevent the box from deforming and the sealant from aging
\nEnvironmental Management around the transfer window
\nKeep the area around the transfer window clean to avoid dust accumulation that affects the air intake quality
\nKeep away from corrosive chemicals and gases to prevent the stainless steel box and electrical components from corroding
\nRegularly clean the air intake area to ensure smooth ventilation
\nLong-term Shutdown Management
\nThoroughly clean the interior, replace the new filter
\nTurn off the power, unplug the plug, and cover the entire machine with a dust cover
\nCheck once a month, run the machine for 15 minutes every 3 months to maintain the activity of the components
\nVI. Fault Emergency and Record Management: The Guarantee System for Longevity
\nCommon Fault Handling<\/p>\n\n\n\n\n\n\n\n
Type of Fault<\/td>\nEmergency handling<\/td>\n\n

Professional repair<\/p>\n<\/td>\n<\/tr>\n

Interlock failure<\/td>\nManually lock the double doors and stop using them.<\/td>\nInspect the circuits and locks, and replace the damaged parts.<\/td>\n<\/tr>\n
Decrease in air volume<\/td>\nClean the primary filter and inspect the fan<\/td>\nCheck the pressure difference of the high-efficiency filter. Replace it if necessary.<\/td>\n<\/tr>\n
Air leakage<\/td>\nSealed with temporary tape. Replace the sealing strip within 24 hours.<\/td>\nCheck the sealing of the box and repair any gaps.<\/td>\n<\/tr>\n
The ultraviolet lamp is not working.<\/td>\nCheck the power supply and the lamp tube.<\/td>\nReplace the lamp tube or the ballast<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Establish a complete maintenance file
\nRecord the time, personnel and results of each cleaning, maintenance, and component replacement
\nKeep DOP inspection reports, filter replacement records and fault handling logs
\nRegularly analyze data, optimize maintenance cycles, and predict potential failures
\nVII. Key Prohibited Items
\nProhibit non-professionals from disassembling the electrical system or mechanical locks to avoid secondary damage
\nHigh-efficiency filters must not be cleaned or reused; they can only be replaced
\nProhibit welding, grinding and other operations that generate a large amount of dust in the transfer window
\nAvoid continuous operation of ultraviolet lamps for a long time, which may affect the lifespan of the lamp tube and the internal material of the transfer window
\nThrough the above systematic management, the service life of the DOP laminar transfer window can be extended by 30% – 50%, while ensuring that it always maintains good cleanliness and safety, providing a reliable guarantee for the cleanroom environment.<\/p>","protected":false},"excerpt":{"rendered":"

To extend the service life of the DOP laminar transfer window, a systematic maintenance system needs to be established from six dimensions: standard operation, daily cleaning, regular maintenance, management of core components, environmental control, and emergency response to faults. The following is the specific implementation guide: 1. Standard operation: The foundation for a long service […]<\/p>","protected":false},"author":3,"featured_media":4858,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[92],"tags":[],"class_list":["post-5086","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\/5086","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\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.bacintl.com\/fr\/wp-json\/wp\/v2\/comments?post=5086"}],"version-history":[{"count":2,"href":"https:\/\/www.bacintl.com\/fr\/wp-json\/wp\/v2\/posts\/5086\/revisions"}],"predecessor-version":[{"id":5088,"href":"https:\/\/www.bacintl.com\/fr\/wp-json\/wp\/v2\/posts\/5086\/revisions\/5088"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bacintl.com\/fr\/wp-json\/wp\/v2\/media\/4858"}],"wp:attachment":[{"href":"https:\/\/www.bacintl.com\/fr\/wp-json\/wp\/v2\/media?parent=5086"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bacintl.com\/fr\/wp-json\/wp\/v2\/categories?post=5086"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bacintl.com\/fr\/wp-json\/wp\/v2\/tags?post=5086"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}