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4900 Series Air Separators (Residential)

The Taco 4900 Series Air Separators are designed for the complete elimination of air from closed loop heating and cooling systemsup to a maximum temperature of 240°F and a maximum pressure of 150 psi. The principle on which the Taco 4900 Series Air Separator is based is a patented and proven method of removing gases from water: the PALL ring process.


  • Patented PALL Ring Design
  • Eliminates Air Induced System Noise
  • Minimal Pressure Loss
  • Vent can be Closed
  • Large Surface Contact Area
  • Protective Vent Plate
  • Rugged Dependability
  • Maximum Air Removal
  • Convenient Expansion Tank Connection Tapping
  • No Minimum Run of Pipe Requirement
  • Bidirectional Flow

4900 Series videoLearn about the 4900 in this short video.