The filter frame is made from an anodized extruded aluminium profile with two angles in each corner to get a rigid straight frame. The zinc coated hood has an attached collar and is tie glued on top of the filter. At the damper (version A) the aerosol / pressure drop checking inlet is placed in a special middle bridge and is adjustable from downstream. The fibreglass media, which is pleated in ’Minipleat shape,’ is available in three different heights (47, 56 and 70 mm) and is cast into the frame and middle bridge. This design gives a highly active filter surface and ensures the minimal pressure drop of the GT model.
Testing
Each filter is tested and packed in accordance with American Standard IEST-RP-CC-001.3 (HEPA and ULPA Filters) or in accordance with the European standard EN 1822-1, 4&5 (testing filter elements HEPA and ULPA efficiency and scan method) or customer requested testing.
Features
HEPA efficiencies of 95% up to 99.9995% (@ 0.3µm )
High quality micro fibreglass paper
Adjustable airflow by means of a damper
Two different damper designs
Anodized rigid aluminum frame
High quality standard due to Quality Assurance System
HEPA filter tested by laser particle counting system
Highly economical although high final pressure drop
For use in clean rooms up to class 1
Standards
EN 1822-5
IEST-RP-CC001.3
EN 779
ASHRAE 52.1
ISO 9001:2000