Metal Type Panel Filter
The air handling units can be provided with a panel filter metal type in flat arrangement, with face velocity equal to the coil velocity. or in a high capacity «W» pattern arrangement with face velocity almost half of the coil velocity this type of filters is made of synthetic material, the increased filter area found in the «W» pattern extends the life of the filter and reduces resistance to air flow. In both cases, a standard framework of galvanized steel is provided and upon request a framework made of galvanized steel electrostatically powder coated with an epoxy-polyester coating of thickness 60 ì or with stainless steel SS304 or SS316 can be supplied. In the filter section, to guide and hold the cassette type filter in position. The filters are available in media class G2, G3 and G4.
Welded Bag Filters
The filters are of the cassette type, 48 mm depth disposable, medium efficiency, consisting of a pleated media pack enclosed in a metal frame. A wire grid to maintain the uniform shape of the pleats, to ensure proper airflow and dust loading at rated filter velocity, supports the media. The media tested in accordance with ASHRAE Standards 52 - 76 and have average arrestance of 85 to 90% or EN 7179 - DIN 53438.
Other Filter Types
Other filter types, such as HEPA, H10, H13, and H14. Modules of cylindrical cartridges of active carbon. Roll with drive motor, etc., can be supplied. For these special types of filters, suitable frame arrangements are available.