How to install ULPA? Inspection, positioning and sealing confirmation before installation

The installation of the ULPA filter should be completed according to the model instructions, including unpacking inspection, air flow direction confirmation, positioning, even compression and post-installation verification. The installation process should protect the filter surface and allow the filter element to bear the load at the designed position. The installation seems to be an on-site action, but the root of many problems lies in the cooperation between the manufacturing end and the assembly end - how to arrange the pressing points, how to position the seals, and where the filter element receives the force. These are determined at the factory. Because Aili Industrial does filter manufacturing and complete machine assembly at the same time, it can directly transform the experience accumulated in the assembly process into on-site installation checkpoints, so that the installation steps are not just 'operate according to the instructions', but also know why each step is done.

1. Confirmation conditions before installation: Check items come from actual experience at the assembly end

Check numbers, drawings, interface cleanliness and process area status, and check for transportation damage and seals. Tools and personnel should meet on-site clean management requirements.

Many items in the pre-installation checklist are extracted from the reasons for rework in the assembly process. For example, seals are displaced during transportation, residual processing debris on the interface, and the filter element number does not correspond to the installation point. These problems are solved by Aili Industrialnon-standard ULPA filters during the assembly and complete machine matching process, so we will remind the project party as a must-check item before installation. We have actually encountered The relationship between levels and filtering requirements can be found inISO cleanliness level comparison。

2. There is a sequence for positioning and fixing: pressing is not as tight as possible.

Transport from permitted frame positions to avoid distortion; compact symmetrically or step by step in accordance with structural regulations. Tightening force and compression conditions cannot apply uniform values ​​on their own.

The pressing sequence and pressing force distribution are the easiest aspects to handle based on experience and the most error-prone aspects of the installation process. Aili Industry isHEPA/ULPA filter frame manufacturing andDuring the assembly of the FFU fan filter unit , there are actual measured data on the force distribution of different filter frame forms and compression structures, which can explain which positions need to be pressed first and which positions are prone to warping due to one side being locked first. When crimping the seal, it should be repositioned first, and the abnormality cannot be hidden under the frame by increasing the pressing force.

3. Sealing confirmation depends on continuity, not just whether it is pressed in place.

To confirm the seal, check that the gasket or tank fits continuously along its entire length and that there is no curling, deflection or under-compression near corners and fasteners. When the pressing force is reached, it does not mean that the sealing surface is continuous.

Aili Industrial will record the continuity of the sealing surface and the leak detection results during the assembly process of the complete machine. This set of experience can be transformed into sealing inspection points for on-site installation: first check the appearance continuity, and then perform installation leak detection. Both are indispensable. Please refer to the combination of sealing method and leak detection method.HEPA FAQs and Selection Guide . For seal confirmation conditions installed inside the equipment, please refer tothe fan filter unit on the EFU equipment side .Instructions related to

4. Establish a baseline after installation: the record is for future comparison.

Check the sealing and fixing status, complete the air volume, pressure difference and leak detection items under specified working conditions, and then record the installation point and the time it was put into use.

The data when the installation is completed is the baseline for subsequent comparisons. Aili Industry is deliveringWhen installing ULPA ultra-high-efficiency filters , we can cooperate with the project party to establish an installation baseline record and match the number, point location, installation time and initial operating parameters to facilitate subsequent judgment of whether rising resistance and changes in air volume are normal operations or abnormal. For the relationship between installation baseline and subsequent maintenance, please refer toULPA ultra-high efficiency filter FAQ and selection guide。

5. Related questions and answers

Can it be produced immediately after installation?
The debugging and acceptance required by the project should be completed first, and the protection area should be confirmed to meet the specified operating conditions. The installation is completed, the leak detection is qualified, and the process area is up to standard are three different things.

Does the greater the pressing force, the better the sealing?
no. Excessive pressing force may cause deformation of the outer frame, excessive compression of the gasket, or offset of the seal, which in turn affects continuity. It should be pressed according to the order and conditions specified by the structure.

What should I do if I find that the gasket is curled during installation?
It should be repositioned first, and the abnormality cannot be hidden under the frame by increasing the pressing force. Even if the rolled edge appears to be compact, the sealing surface may be discontinuous.

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

Ai Li Industrial also doesULPA filter manufacturing andWhen the FFU fan filter unit is assembled, problems accumulated during the assembly process will be converted into on-site installation checkpoints: seal displacement, interface residue, number misalignment, etc. are all prompted in the must-check items before installation; there are actual measured data on the stress distribution of different filter frame forms and compression structures, which can explain the compression sequence and the locations prone to warping.For non-standard ULPA filter projects, the positioning and compression requirements can be confirmed according to the installation direction and structure, and the installation baseline record can be established during delivery. Device-side projects can be combinedof the fan filter unit on the EFU equipment side . Confirm the installation interface 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.