Foam Trap

Foam Trap E-SF80

Separator for protecting a gas system from foam

operational area | usage

Digester gas recovery/gas cleaning in:

  • Wastewater treatment plants with sludge recovery / digestion towers
  • Biogas plants

product description

It is located on the digestion tower, outside the gas chamber, directly above the sludge bag. The sludge trap consists of a stainless steel tank with diverse connections and spraying equipment. If foam is produced the gas flowing through the tank is sprayed with water and the foam is separated. The spraying process is triggered by a sensor. The separated foam is fed from the digestion tower into the sludge pocket.

constructional features

  • Stainless steel tank with gas inlet and gas outlet
  • Flushing equipment with connections
  • Sensor technology and control via process control system
  • Inspection glass for manual checking
  • Conical floor with trap
  • Sizes for connections DN 50 to 200


  • Functionally reliable, tried & tested solution
  • Reliable foam detection
  • Automatic control of the foam separation
  • Automation possible via the process control system
  • Easy to clean
  • Individual adaptation to existing situation possible, as a substitute solution or as an add-on


Datasheet Foam Trap

contact person

Holger Wünsch
Product manager

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