• Sizing methodology – Determine total air demand, apply diversity/safety factors, and add 10–20% leakage allowance
  • Capacity selection – Choose capacity slightly above total demand and verify output at target operating pressure
  • Free Air Delivery (FAD) definition – Volume of air delivered under ambient conditions, benchmarked in m³/min or CFM
  • FAD Formula – Normalized flow calculation using: $FAD = \frac{P_2 \cdot V_2 \cdot T_1}{P_1 \cdot T_2}$
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