♦ For all types of environments, especially for those with Filter Medium Filtrair designs and manufactures its own filter media. Filtrair PFW depth-loading filter medium is immersion bonded, additionally stiffened and manufactured with a progressive density to ensure high dust holding capacity with lowest pressure drop. high coarse dust content ♦ Durable, 100% synthetic medium, operates unaffected by moisture ♦ Low additional pressure drop – high dust holding capacity ♦ Easy handling and fast installation – no plant shut down due to Velcro band, attached to medium ♦ Cost effective solution to prolong the final filter life ♦ Available in filter class G4 as per EN 779 and in all dimensions fitting common pulse jet cartridge filters ♦ Washable and reusable ♦ Problem-free disposal, e.g. by incineration FILTRAIR GT CARTRIDGE WRAP PRE-FILTERS FILTRAIR Cartridge Wrap Prefilters PFW–G4 Features Filtrair GT Cartridge Wrap Pre-Filters PFW are specifically designed to act as, low pressure drop pre-filters for pleated pulse-jet cartridge fine filters of combustion engine air intake systems. They significantly prolong their life and increase their operational safety. Filtrair PFW pre-filters may also be used during seasonal increases in dust concentration, such as pollen, seeds, fibres or other large particles. They are easy to install and to change, cost effective and – if equipped with special hydrophobic treatment – have coalescing function in case of high humidity. CartridgeWrapPrefilter-E-A4-0708 Application

Filtrair GT Cartridge Wrap Pre-Filters – Technical Specifications Cartridge Wrap Pre-Filter Application limits Type PFW-26 PFW-26C mm 22 22 ♦ Maximum continuous ope- 3 m /h 2100 2400 Initial pressure drop at rated flow Pa 20 20 rating temperature: ≤ 80°C short peaks up to 100°C Recommended final pressure drop (filter change) Pa 250 250 Average dust weight arrestance as per EN 779 % 92% 92% Filter class (as per EN 779: 2002) – G4 G4 ASHRAE dust loading capacity as per EN779 g 400 460 Filter medium thickness Rated air flow ♦ Admissible relative humidity of air: ≤ 100% ♦ Flammability classifications:...