How to avoid damage to the filter material during unpacking and assembly of ULPA? Inspection and retest after accidental collision

When unpacking the ULPA filter , the media and glue seams should be protected and transported from a frame that allows stress. After the filter surface is accidentally touched, even if there are no obvious holes in the appearance, the integrity test should be recorded and evaluated. The trouble with filter material damage is that many damages are not visible to the naked eye, but are only exposed during leak detection or during operation. Aili Industrial has clear filter material protection procedures on the complete machine assembly line - which positions can be touched, which positions must not be stressed, and how to deal with accidental contact. This set of regulations can be directly transformed into operation checkpoints for on-site unpacking and assembly, turning 'careful handling' into requirements with specific action standards.

1. Choose a suitable unpacking environment: Unpacking itself is a process

Make sure the surface of the packaging is clean and open it layer by layer to prevent knives, ties and packaging debris from approaching the filter surface. Keep the model label and necessary shipping records.

Unpacking is not as simple as tearing open the package. Knife scratches, zip ties popping off, and packaging debris falling into the sealing surface are all common sources of damage on site. Aili Industry isWhen designing the delivery packaging of HEPA/ULPA filters , the safety of the unpacking action will be taken into consideration - the outer packaging and inner packaging are layered, and the filter surface protection and transportation stoppers are separated, so that they can be dismantled layer by layer on site without having to operate against the filter surface. This design idea comes from the actual experience in the unpacking process of the assembly line and reduces the probability of 'damage caused by unpacking'. The relationship between levels and filtering requirements can be found inISO cleanliness level comparison。

2. Handling without contact with media: The stress point of the filter element is specified.

Do not hold the filter surface, step on it or place tools on the filter element. When multiple people are cooperating, agree on the movements first to avoid distortion of the outer frame and sudden collisions.

There are clear regulations for the handling of filter elements on the assembly line: stress points are only allowed at specific positions on the frame, and the filter surface and protective net do not bear the weight. Aili Industry isNon-standard ULPA filters andThis set of specifications is implemented in the assembly of the FFU fan filter unit , which can explain the allowable force positions of different size models, the sequence of actions for multiple people to cooperate, and which temporary placement methods will cause hidden dangers. These contents will be explained together with the product delivery, so there is no need to explore it yourself on site.

3. Isolation judgment after accidental collision: Invisible damage also needs to be evaluated

Record the contact position, tool and stress status, and check the outer frame and glue seams. When retesting is required, verify according to applicable methods and do not scrub or flatten by yourself.

After the filter surface is touched by a tool, the appearance may only be slightly indented, but the media structure may have changed. Aili Industrial has a clear isolation and evaluation process for accidentally touched parts in the assembly process: first record the contact situation, then conduct appearance and glue seam inspections, retest according to applicable methods if necessary, and only decide to continue using or replacing the parts after confirming the status. This set of procedures can be provided to the project party as a reference for on-site processing to avoid the two extremes of 'continuing to install when nothing seems to be wrong' or 'scrapping the whole thing as soon as it is touched.' The relationship between sealing and integrity can be referred toHEPA FAQs and Selection Guide。

4. The filter materials assembled inside the equipment have higher protection requirements.

The internal space of the equipment is small and the structure is complex. During the installation process, the distance between the filter surface and the surrounding structures is closer, and the probability of accidental collision is higher. Aili Industry isThe assembly design of the fan filter unit at the EFU equipment end will reserve loading guide and filter surface protection space to reduce the risk of contact during the assembly process; customized projects can take the distance between the loading path and the filter surface into consideration during the structural planning stage, instead of relying on operational skills to avoid it during on-site assembly.

5. Related questions and answers

Can I touch the noodles while wearing gloves?
Gloves help clean the operation, but they cannot prevent the media from being crushed. Contact with the filter surface should still be avoided. Gloves can only solve the pollution problem, but not the stress problem.

What should I do if the unpacking knife cuts through the lining of the package and is close to the filter surface?
Potential contact areas should be inspected rather than continuing with the installation just because you don't see a crack. Record the contact position and tool status, and retest according to applicable methods if necessary.

Can it still be used if it looks normal after accidentally touching it?
should be documented and evaluated. A normal appearance does not mean that the media structure is not affected. Whether to continue using it depends on the inspection results and project requirements.

6. Related articles

ULPA ultra-high efficiency filter FAQ and selection guide

HEPA FAQs and Selection Guide

FFU FAQ and technical support

EFU FAQ and technical support

7. Key points for selection and acceptance inspection

8. Product matching and technical support from Aili Industrial

Aili Industrial implements clear filter material protection procedures on the complete machine assembly line: the stress points are limited to specific positions of the frame, and the filter surface and protective net are not load-bearing; accidental collision parts have a complete process of isolation, recording, evaluation, and retesting. This set of regulations will followHEPA/ULPA filters andThe FFU fan filter unit is delivered with instructions, so there is no need to explore it yourself on site.Non-standard ULPA filters can specify the allowable stress position and collaborative action requirements according to size and installation method.The EFU equipment-end fan filter unit can reserve space for installation guide and filter surface protection in the structural design. Provide process objectives, installation drawings, operating conditions and acceptance requirements for further communicationULPA ultra-high efficiency filters . Standard specifications, non-standard interfaces, samples and batch matching of The specific parameters and test range are based on the confirmed model and technical documents.