AH
68MM MINI PLEAT ABSOLUTE FILTER F9-E11
SIGMA-BETA series AH – AS high efficiency and semi-absolute filters are manufactured with the mini pleat technology, have a very small depth and can be installed in exhaust grilles. AH – AS filters are produced in various sizes with air flow ranging from 66 to 2700 m3/h. All the filters have 69 mm-deep anodized extruded aluminum frame, with steel white epoxy painted protective grids on both upstream and downstream sides. The filtering medium is made of micro-fibre glass, water-proof and fire resistant; the mini pleats have continuous thermoplastic spacers, and polyurethane sealant. It is provided with a one-piece continuous half-round gasket.
Thanks to the low pressure drop of the filters, the energy consumption level of the fan is very low. All filters are supplied with a label indicating the relevant performance.
Technical Features
| Product | AH | AS |
| Efficiency MPPS | – | > 95 % |
| EN 779 Classification | F9 | – |
| EN 1822:2009 classification | – | E11 |
| Suggested final pressure drop | 300 Pa | 300 Pa |
| Maximum operating temperature | 70 °C | 70 °C |
| Maximum relative humidity | 90% | 90% |
| Eurovent certificate | ✓ | |
| CE mark | ✓ | ✓ |
| ATEX version on request | ✓ | ✓ |
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