Gravel filters FG series

EQUIPMENT TYPE
Gravel filters are used to remove condensate drops and
particles dragged by the biogas flow.

APPLICATION
Our gravel filters FG series are usually installed immediately
at the outlet of the digester to remove condensate drops
and coarse particles from the biogas.

OPERATING PRINCIPLE
The Airdep gravel filter FG series ensures the simple coarse
cleansing of the biogas. The gas flows through a gravel filter
layer during which process dirt, foam and condensate
droplets are separated out. Filling material is usually coarse
gravel with granular size between 30 and 60 mm. An
external water trap device allows for continuous disposal of
condensate.

MAIN ADVANTAGES
– No clogging problems
– Easy maintenance
– Low cost