Pressure drop in a straight pipe   

Pressure drop in a straight pipe



Pressure drop - Values for water at ambient temperature (1000 kg/m³, 1 mPas, k=0.1 mm):
Pressure drop at 2.5 m³/h Pressure drop at 5 m³/h Pressure drop at 10 m³/h Pressure drop at 20 m³/h Pressure drop at 40 m³/h
Pressure drop DN25 (d=28mm) 0.07 bar / 10m 0.264 bar / 10m 1.018 bar / 10m 4.07 bar / 10m 16.28 bar / 10m
Pressure drop DN50 (d=55mm) 0.002 bar / 10m 0.009 bar / 10m 0.032 bar / 10m 0.119 bar / 10m 0.477 bar / 10m
Pressure drop DN100 (d=108mm) < 0.001 bar / 10m < 0.001 bar / 10m 0.001 bar / 10m 0.004 bar / 10m 0.014 bar / 10m

Means of Calculation Steel Pipe Plastic pipe
Plant
Fluid Temperature ºC
Volume flow* m³/h
Density* kg/m³ Dyn. Viscosity (Newton) mPas
Internal Diameter  d * mm Roughness  k * mm
Pipe length* m




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