Coalescing filters
series MAF302, MAF401 and MAF501
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The coalescing filter is utilized when either clean air is required or longer component life is desired. This type of filter removes water and oil aerosols. It works differently than the particulate filter; dirty air enters the element from the centre and passes through a field of glass fibres which cause the aerosols to form into droplets which are heavier than the surrounding air. The droplets grow larger as they pass through the element and gravity causes the oil drops to drain to the sump of the bowl. By removing the harmful oil varnishes and contaminant that attack seals and gaskets, the valve or cylinder is much less likely to stick. To maximize the life of a coalescing filter it should always be used after a 5 micron particulate filter. Series 401 has got metal bowl with sight glass. |
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Technical data
Series Port size |
MAF302 | MAF401 | MAF501 | ||||||
G1/4" | G3/8" | G1/2" | G1/4" | G3/8" | G1/2" | G3/4" | G1" | ||
Flow at 0,7 MPa (Δp=0,03 MPa) [Nl/min] |
filter element 5 µm | - | - | - | 1300 | 2000 | 2500 | - | - |
filter element 0,3 µm | 1100 | 1800 | 2000 | 1250 | 1900 | 2300 | 6000 | 7000 | |
filter element 0,01 µm | 1000 | 1700 | 1800 | 1200 | 1850 | 2200 | 5000 | 6000 | |
Primary pressure [MPa] for semiautomatic drain | 0,05 to 1 | 0,05 to 1,5 | 0,05 to 1 and 0,05 to 1,5 for metal bowl | ||||||
Primary pressure [MPa] for automatic drain | 0,15 to 1 | 0,15 to 1 | 0,15 to 1 | ||||||
Test pressure [MPa] | 1,5 | 2 | 1,5 and 2 for metal bowl | ||||||
Temperature range [°C] | -5 to +60 | -5 to +60 | -5 to +60 | ||||||
Filter element [μm] | 0,3 a 0,01 | 5, 0,3 a 0,01 | 0,3 a 0,01 | ||||||
Drain capacity [cm3] | 35 | 70 | 75 and 70 for metal bowl | ||||||
Weight [kg] | 0,37 | 0,48 | 1,18 and 1,3 for metal bowl | ||||||
Supply contains | bracket (C-type) | bracket (C-type) | bracket (L-type) |
Flow capacity
MAF302 (filter element 0,3 µm)
MAF302 (filter element 0,01 µm)
MAF401 (filter element 5 µm)
MAF401 (filter element 0,3 µm)
MAF401 (filter element 0,01 µm)
MAF501 (filter element 0,3 µm)