paper frame pre filter

��?Fully disposable ��?Low initial pressure drop ��?High air flow rate ��?Extended surface ��?High arrestance Applications ��?general filtration and pre-filtration Type ��?pleated filter panels Frame ��?water resistant cared Filter media ��?blend of synthetic /natural fibers Grids ��?water resistent card Gasket ��?none EN 779 class ��?G4 Average arrestance ��?92% ( A SHRAE 52.1.1992 ) EUROVENT 4/5 class ��?EU 4 Final pressure drop ��?250 Pa Maximum air flow rate ��?125% of nominal air flow rate Max. operating temperature ��?70��? Max. relative humidity ��?80% RH Installation ��?holding frames type CT 10/ 20 /30 Type Dimensions Filtering surface (m2) Rated air flow (m3/h) Initial pressure drop (Pa) Height (mm) Width (mm) Depth (mm) PH40 287 592 45 0.6 1400 45 PH40 395 495 45 0.63 1650 45 PH40 495 495 45 0.78 2100 45 PH40 592 592 45 1.17 3000 45 PH40 287 592 96 1 2000 55 PH40 385 495 96 1.1 2300 55 PH40 495 495 96 1.38 2900 55 PH40 592 592 96 1.95 4200 55 OTHER SIZES: ON REQUEST OTHER MATERAILS: ON REQUEST