MFI

Specification text

Mini Pleat filter insert type MFI for the separation of fine dust and suspended particles such as aerosols, toxic dusts, viruses and bacteria from the supply and extract air in ventilation systems. Used as fine dust filters, prefilters or final filters in AHU units; or as particulate filters, main or final filters for highest requirements of air purity and sterility, in areas such as industry, research, medicine, pharmaceuticals, and nuclear technology. Low installation depth due to compact V-design, for systems with high volume flow rates and long filter service lives. Filter media made of high-quality, wet-strength glass fibre papers, with spacers. Optimum pleat position and largest possible filter area allow low initial differential pressures. Mini Pleat filter inserts available in market sizes, filter groups ISO ePM10, ISO ePM1 (fine dust filters) and EPA, HEPA (particulate filters). As a fine dust filter (filter groups according to ISO 16890) as standard without seal, optionally available with flat seal, as a particulate filter, Mini Pleat filter inserts are equipped with a flat seal. Filter classes E11, H13 and H14 as standard with protection grid on the downstream side. Mini Pleat filter insert as fine dust filters are certified according to Eurovent. Mini Pleat filter inserts MFI are hygiene-compliant according to VDI 6022.

The filter insert MFI with optional EX protection MFI-EX may be used in areas with a potentially explosive atmosphere of zones 1 and 2 and zones 21 and 22 (EX II 2G Ex h IIC Gb and EX II 2D Ex h IIIB Db).

The filter must be connected to the ground potential. All conductive and dissipative parts must be connected to each other and to earthed. Conductive dusts are excluded from the application. Make sure that no metal particles can get into the filter. Ambient temperature range: -40 °C ≤ Ta ≤ +80 °C.

Special features

• Optimised energy efficiency of the PLA-ECO construction in ISO ePM1
• Leakage test is standard for all particulate filters of classes H13, H14

Materials and surfaces

• Filter media made of high-quality, wet-strength glass fibre papers, pleated
• Spacers provide a uniform spacing of the pleats
• Joint sealing compound made of permanently elastic two-component polyurethane adhesive
• Frame options: made of plastic, galvanised steel or of galvanised sheet steel, powder-coated RAL 9010, pure white

Construction

• PLA: Frame made of plastic
• PLA-ECO: plastic frame, optimised energy efficiency
• GAL: Frame made of galvanised steel
• SPC: frame steel galvanised, powder-coated, RAL 9010 (pure white)
• EX: Protection zones 1 and 2 as well as 21 and 22 (only in combination with frame version GAL)

Sizing data

• Filter group [ISO 16890]
• Separation efficiency [%]
• Filter class [EN 1822]
• Volume flow rate [m³/h]
• Initial differential pressure [Pa]
• Nominal size [mm]

Life cycle assessment
A life cycle assessment is available for the product series in form of an Environmental Product Declaration (EPD) that has been checked and published by a programme holder.

1 Type
MFI Mini Pleat filter insert

2 Classification
ePM1 Fractional efficiency ePM1 acc. to ISO 16890
ePM10 Fractional efficiency ePM10 acc. to ISO 16890
E10 Filter class E10 according to EN 1822
E11 Filter class E11 according to EN 1822
H13 Filter class H13 according to EN 1822
H14 Filter class H14 according to EN 1822

3 Separation efficiency
Specify the separation efficiency [%] according to ISO 16890 (not for E10, E11, H13, H14)

4 Construction
PLA Frame made of plastic
PLA-ECO Plastic frame, optimised energy efficiency
GAL Frame made of galvanised sheet steel
SPC Frame made of galvanised sheet steel, powder-coated RAL 9010 (pure white)
EX Frame made of galvanised sheet steel, for zones 1 and 2 as well as 21 and 22 in areas with potentially explosive atmospheres (EX)

5 Nominal size [mm]
Specify width × height × depth

6 Number of filter packs
6, 8

7 Protection grid
No entry: without protection grid
PD Protection grid on the downstream side (E11, H13, H14 only)

8 Seal
No entry: without seal

FNU Flat seal on the upstream side
FND Flat seal on the downstream side

9 Testing
No entry: no leakage test
OT Oil mist test (only H13, H14)
OTC Oil mist test with certificate (only H13, H14)