Dense phase means a higher product to gas ratio or a smaller amount of gas is used to move a large quantity of product. The less the gas requirement, power consumption is less by vacuum pump.
Advantages:
- Lower cost system.
- Less dusting or contamination.
- Less temperature problems.
- No moving parts Maintenance
Applications:
Plastics, chemical, food, pharmaceutical, cement & paint.

Lean phase conveying system transport powders or granular material over horizontal and vertical distances within a plant with the help of air. Using either positive or negative pressure of air or other gases, the material to be transported is forced through pipes & finally separated from carrier air & deposited at the desired destination.