Calculations Air Duct Elbow Loss Fill in the form below. Unit system : SI Imperial System Element : Elbow-Round Duct Elbow-Ruffles Elbow-Piece Elbow-Rectangle Flow rate : m³/h lt/s Wid.(W)/Heig.(H) : 25 50 75 100 125 150 175 200 225 250 275 300 350 400 450 500 550 600 650 700 750 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300 2400 2500 25 50 75 100 125 150 175 200 225 250 275 300 350 400 450 500 550 600 650 700 750 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300 2400 2500 mm Elbow Angle (θ) : 20 30 45 60 75 90 110 130 150 180 Radius/Heig.(r/W) : 0.50 0.75 1.00 1.25 1.50 1.75 2.00 Fluid Temperature : °C Sound insulation : No 6 mm 10 mm 15 mm 20 mm 25 mm Air Duct Calculation Air Duct Calculation Flexible Air Duct Calculation Air Grille Calculation Diffuser Selection Air Duct Tee Loss Reduction Transition Elbows Elbow Pressure Loss Calc. Elbow, Smooth Radius, Splitter Vane Pipe Calculations Equation Solver