General Information
Application
- Mini Pleat filter panel for the separation of suspended particles such as aerosols, toxic dusts, viruses, bacteria from the supply and extract air in cleanroom facilities with controlled air cleanliness and airflow.
- Particulate filter: Final filter for the most critical requirements of air cleanliness and sterility in areas such as production, research, medicine, pharmaceuticals industry, and nuclear engineering, etc.
Special characteristics
- Optimal pleat geometry of the filter medium
- Low-turbulence outflow of clean air
- Leakage test using the scan test as proof of leak-tightness and as assurance for compliance with separation efficiency and pressure loss (standard from H14).
Classification
- Hygiene Conformity
Nominal sizes
- B × H × T [in]
Filter classes
Filter groups
- ePM 10 according to DIN EN ISO 16890
- ePM 1 according to DIN EN ISO 16890
- EPA according to DIN EN 1822
- HEPA according to DIN EN 1822
- ULPA according to DIN EN 1822
Filter classes
ePM10
ePM 1
E11
H13
H14
U15
U16
Options
- FT: pleat depth
- CSU: continuous seal on the upstream side
- CSD: continuous seal on the downstream side
- CSB: continuous seal on both sides
- FNU: flat seal on the upstream side
- FND: flat seal on the downstream side
- FNB: flat seal on both sides
- GPU: Fluid seal (only for ALV, ALU, ALQ, ALT, ALH)
- TGU: test groove seal on the upstream side (only for filter classes H13, H14)
- PU: protection grid on the upstream side
- PD: protection grid on the downstream side
- PB: protection grid on both sides
- OT: oil mist test (only for filter classes H13, H14)
- OTC: oil mist test with certificate (only for filter classes H13, H14)
- ST: Scan test
- LFU: full-surface laminar fleece on the upstream side
- LFD: full-surface laminar fleece on the downstream side
- LFS: laminar fleece strips
Construction
Frame versions made from extruded aluminium section
List of frame depths according to construction:
Profiles with groove for continuous seal:
- ALD: 2.6 in
- ALB: 2.75 in
- ALC: 3.1 in
- ALG: 3.6 in
- ALJ: 4.5 in
Profiles for continuous seal/flat seal
- ALN: 1.2 in
- ALZ: 3.6 in
- ALY: 5.9 in
Profiles for fluid seal
- ALV: 3.4 in
- ALU: 3.6 in
- ALQ: 4.1 in
- ALT: 5.1 in
- ALH: 5.1 in
Profiles with knife edge profile
- ALL: 3.7 in
- ALS: 4.1 in
- ALR: 4.3 in
- ALX: 5.25 in
Material and surfaces
- Filter media made of high-quality, wet-strength glass fibre papers, pleated
- Spacers made of thermoplastic hot-melt adhesive provide a uniform spacing of the pleats
- Joint sealing compound made of permanently elastic twocomponent polyurethane adhesive
- Frame made from extruded aluminium sections
Standards and guidelines
- Testing of particulate filters according to DIN EN 1822-1 and DIN EN ISO 29463-2 – DIN EN ISO 29463-5 (EPA, EPA, and ULPA particulate filters): Standards for testing filtration performance at the manufacturing plant, based on particle counting methods using a liquid test aerosol.
- Testing in accordance with DIN EN ISO 16890; international standard: air filters for general ventilation. Classification of fractional efficiency based on the measured fractional efficiency which is processed into a reporting system for the particulate matter efficiency (ePM)
- For fine dust filters, the fractional efficiency of a certain size range is determined by aerosols (DEHS and KCl)
- Depending on the test values, the filters are classified into the filter groups ISO ePM10 and ISO ePM1
- Uniform classification of particulate filters according to separation efficiency, using a test aerosol with an average particle size within the minimum separation efficiency (MPPS)
- Particulate filters are classified, according to the values determined for the local separation efficiency and the overall separation efficiency, into EPA (filter classes E10, E11, E12), HEPA (filter classes H13, H14) or ULPA (filter classes U15, U16, U17)
- Hygiene compliance: VDI 6022, VDI 3803, DIN 1946 Part 4, ÖNORM H 6021 and ÖNORM H 6020, SWKI VA 104-01 and SWKI 99-3, and EN 16798
