DILUTE Phase Pneumatic Conveying System

DILUTE Phase Pneumatic Conveying System

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DILUTE Phase Pneumatic Conveying System

Solid, Granular & powdered materials have been handled conventionally, by mechanical conveying equipments such as belt conveyers/screw conveyers/ bucket elevators/ goods lifts etc.

This newer concept is making the solids air borne, in a fluid state, with the help of air or an inert gas travelling in a closed pipeline. The concept was found very attractive due to a closed pipeline conveying & was picked up by most industries for handling of solids pneumatically, in the last three decades.

Depending on the product characteristics, air volume & pressures are applied at design stage. This parameters catagorise the systems as either DENSE Phase Conveying System or DILUTE / LEAN Phase Conveying System.

EEFI is one of the pioneer Designer & manufacturer of Lean / Dilute type Positive Conveying System. In this system material is conveyed with the help Centrifugal Blower/Roots Blower/Regenerative Blower. Here material is conveyed either by negative suction or by positive pressure of blower.


  • Pneumatic Line Diverter.
  • Wear Resistant Bends / Long Radius Bend.
  • Feed Hoppers With Vibro Motors & Pneumatic Piston Vibrator.
  • Aeration Pad for Hopper Discharge.
  • Control Panel Modules With MIMIC & Programming.
  • Vent Filters for Discharge Lines & Silo.
  • Rotary Airlock Valves / Rotary Airlock Feeders.
  • Regenerative Blowers / Turbine Blowers / Roots Blower / Centrifugal Blower.
  • Dome Valve. (Dense Phase)
  • Anti Plug Line Vales/ Booster Valves.(Dense Phase)
  • Pick Up Tee For Rotary Airlock Valves / Pick Up Nozzles / Vacuum Nozzles for Truck unloading.(Lean Phase)
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