What is the difference between vertical installation and horizontal installation of ULPA filter?

Vertical and horizontal installation of ULPA filters require separate support, fixation, sealing stress and maintenance methods. The level of filtration does not change based on the orientation designation, but whether a specific model allows this orientation should be confirmed by the construction and product description. If the same model is installed in another direction, the force will change, the pressure of the seal will change, and the maintenance route will also change. You cannot just rotate the filter element and it will be considered complete modification. Aili Industrial's product line covers both horizontal installation on the ceiling and side installation inside the equipment.The FFU fan filter unit is suitable for horizontal ceiling installation.The fan filter unit at the EFU equipment end can be installed in multiple directions inside the equipment. The box structure and support methods corresponding to different installation postures are designed separately within their respective product lines.

1. Check the load-bearing and positioning: the direction of gravity has changed, and the force path has also changed.

The stress paths of horizontal hoisting, vertical wall mounting or tilting inside the equipment are different. The media should be prevented from bearing the weight, and the frame should not be displaced under the action of gravity.

When installed horizontally, the weight of the filter element is mainly borne by the plane of the frame, and the support points are relatively evenly distributed; when installed vertically, the weight is concentrated on the lower frame, and the lower frame and bottom fixings bear greater loads. Aili Industry isThe support layout of the ceiling structure of the FFU fan filter unit is designed according to horizontal stress.In the internal installation structure of the fan filter unit at the EFU equipment end, the bottom support and positioning parts are designed according to vertical or oblique stress. The structural differences between the two postures have been clarified at the product drawing stage. The relationship between levels and filtering requirements can be found inISO cleanliness level comparison。

2. Check the working status of the sealing material: the seals are pressurized in different ways in different directions.

Gasket compression and liquid tank fit may be affected by the installation posture. In particular, liquid tank products cannot be changed in direction without confirmation to avoid deviation from the original sealing design.

When installed horizontally, gravity allows the filter element to naturally fit against the sealing surface; when installed vertically, the filter element has a tendency to slide downward, and the seal may undergo shear rather than pure compression. Aili Industry isThe application instructions for the liquid tank seal ULPA filter will clearly indicate the allowed installation direction. The knife edge of the liquid tank structure and the tank body have different sealing mechanisms in different postures and cannot be rotated at will.If the installation direction of a non-standard ULPA filter project needs to be changed, the suitability of the seals and fixing methods can be evaluated during the structural plan stage. The relationship between sealing and compression can be referred toHEPA FAQs and Selection Guide。

3. Consider maintenance and testing at the same time: the leak detection attitude should correspond to the actual use attitude

Reserve space for probe approach, complete exit and safe access. Leak detection after assembly should correspond to the actual usage posture, rather than just citing test records from another direction.

Horizontally installed filter elements can be withdrawn downwards or taken out upwards, while vertically installed filter elements are usually side-extracted in the horizontal direction, with different exit paths and access methods. Aili Industry isThe structure of the detachable FFU indicates the exit direction of the filter element when installed horizontally.The ultra-thin EFU has a side extraction path designed according to the side installation scenario inside the device. When detecting leaks, the reachable position and scanning path of the probe also change with the installation posture, and the detection should be arranged according to the actual use direction. For the relationship between maintenance space and leak detection accessibility, please refer toULPA ultra-high efficiency filter FAQ and selection guide。

4. The structural suitability of the liquid tank filter element originally designed for the suspended ceiling must be checked before being installed on the side wall.

Before the liquid tank filter element originally designed for the ceiling is converted to a side wall installation, the structural suitability should be checked first. The modification cannot be completed by simply rotating the outer frame. After the installation direction is changed, the liquid level distribution of the liquid tank, the force direction of the knife edge and the position of the fixed point will all change, and the original sealing design premise may no longer hold true.

Aili Industry isnon-standard ULPA filter project, the suitability will be evaluated from three aspects: filter frame structure, sealing form and fixing method. If necessary, the structure will be adjusted instead of forced modification on site.When the installation direction changes in a

5. Related questions and answers

Is it necessarily easier to collect dust if installed vertically?
Dust accumulation is also related to upstream pollution and airflow distribution, and cannot be predicted only by the installation direction.

Can the horizontally installed filter element be directly changed to vertical installation?
It cannot be changed directly. The installation direction, seal pressure method and fixed structure allowed by the model should be checked, especially the liquid tank structure.

Can the test records from the original direction be used for leak detection?
Not recommended. Leak detection should correspond to the actual usage posture as much as possible. After the installation direction is changed, the detection range and results should be re-confirmed.

6. Related articles

ULPA ultra-high efficiency filter FAQ and selection guide

Liquid tank seal ULPA ultra high efficiency filter

Ultra-thin EFU

HEPA FAQs and Selection Guide

7. Key points for selection and acceptance inspection

8. Product matching and technical support from Aili Industrial

Aili Industrial's product line covers both horizontal ceiling installation and multi-directional installation inside the equipment:The FFU fan filter unit is designed with a ceiling support layout based on horizontal stress.The bottom support and positioning parts of the fan filter unit at the EFU equipment end are designed according to vertical or oblique stress. The structural differences between the two postures are clarified at the drawing stage.The application instructions for liquid tank sealing ULPA filters clearly indicate the permitted mounting directions,The detachable FFU indicates the horizontal exit direction.The ultra-thin EFU is designed with a side extraction path for side installation inside the device.If the installation direction of a non-standard ULPA filter project needs to be changed, the suitability can be evaluated from three aspects: filter frame structure, sealing form and fixing method. 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.