BOLLFILTER Automatic Type 6.21/6.22 Cost-effective fuel oil filter

Flange Connection
DN 50 (optional with Adapter to DN 32 / 1 1/4") / 2"
Filter element
Grade of filtration
optional 10 µm, 25 µm, 34 µm or 48 µm
Pressure stage
PN 16
Operating temperature
max. 160°C
Filter housing
nodular cast iron
Optional equipment
- Bypass filter with change-over valve
- Integrated heating chamber
BOLLFILTER Automatic Type 6.21/6.22 Cost-effective fuel oil filter

The BOLLFILTER Automatic Type 6.21 has been especially designed for the filtration of lower and continuous filtration volumes of liquid fuels. The filter operates predominantly for the protection of diesel injection pumps. When required, the media is cleaned one segment at a time by a rotating backflush unit, without interrupting the filtration process. The working pressure remains almost constant and the flushing volumes are extremely low. The filter can optionally be equipped with a heating medium connection on the bottom of the housing and with a bypass filter.



    Compact fuel filter for optimum protection of the diesel injection pumps ▶ Minimum flush volumes ▶ consistent pressure ▶ Segmental backflushing of the filter
    BOLLFILTER Automatic Type 6.21/6.22

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    Carsten Wiese, Spare Parts Manager BOLLFILTER Nordic
    Carsten Wiese