Dilute Phase Pressure System
- Probably one of the most commonly used concepts for conveying of bulk solids. Typical dilute phase pressure system where material is entrained in air stream which must be greater than the saltation velocity of the material.
- Not suited for abrasive or fragile, or very heavy materials.

Advantages:
• Competitive cost
• Simple to operate
• Reasonable headroom required at feed point
• More efficient than vacuum
• Ideal for single source – multiple destination system layout
Disadvantages:
• Not suited for abrasive applications
• Not well suited for fragile materials
• Not suited for heavy density materials