Head Calculation Pipe Diameter (mm): Flow Rate (m³/hr): Pipe Length (m): Vertical Head (m): End Pressure (m): Safety Margin (m): Expansion Joints: Elbows: NRVs: Gate Valves: Tees: Calculate Total Head Download PDF Flow Rate Calculation Flow Rate (m³/hr): Pipe Inside Diameter (mm): Kinematic Viscosity (cSt): Pipe Length (m): Calculate Calculated Values: Average Velocity (m/s): Reynolds Number: Darcy Friction Factor: Head Loss in Pipe (m): Total Head Loss (m): Download PDF Fixture Unit Calculator Fixture Unit Calculator Select Area: -- Select Area -- Service Block Majlis Area HH Area