Engineering Tools

Pipe FlowCalculator

Calculate fluid flow in pipes. Determine velocity, flow rate, and pressure drop using Hazen-Williams or Darcy-Weisbach equations.

Flow Analysis

Flow Results

Velocity5.7ft/s
Pressure Drop12.5psi

Flow Characteristics

Flow Rate (CFS)1.11 ft³/s
Reynolds Number285,000
Friction Factor (f)0.018
Head Loss (ft)28.9 ft
Flow RegimeTurbulent

Velocity Guidelines

  • Water: 3-10 ft/s typical
  • Max water: 15 ft/s
  • Sewage: 2-5 ft/s
  • Slurry: 3-8 ft/s

Hazen-Williams C Values

  • New steel: 120-140
  • Old steel: 60-100
  • PVC/Plastic: 140-150
  • Copper: 130-140

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