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Steel Pipes Schedule 80 - Friction Loss vs. Water Flow Diagram

Water flow in steel pipes schedule 80 - pressure drop and velocity diagrams in SI and Imperial units.

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The diagrams below indicates pressure drop for water flow through ASME/ANSI B36.10/19 schedule 80 steel pipes.

The pressure drop calculations are made with the D'Arcy-Weisbach Equation.

Fluid : Water
Pipe : Steel Pipe - Schedule 80
Temperature : 20.0 ^oC (68.0 ^oF)
Density : 998.3 kg/m³ (62.0 lb/ft³)
Kinematic Viscosity : 1.004 10^-6 m²/s (0.01 stokes) (1.08E-5 ft²/s)
Pipe Roughness Coefficient : 4.5 10^-5

Pressure Drop - SI units

Steel pipe schedule 80 - pressure drop and velocity diagram - SI units

1 Pa = 10^-6 N/mm² = 10^-5 bar = 0.1020 kp/m² = 1.02x10^-4 m H₂O = 9.869x10^-6 atm = 1.45x10^-4 psi (lbf/in²)
1 liter/s = 10^-3 m³/s = 3.6 m³/h = 0.03532 ft³/s = 2.1189 ft³/min (cfm) = 13.200 Imp.gal (UK)/min = 15.852 gal (US)/min = 792 Imp. gal (UK)/h
1 m/s = 3.6 km/h = 196.85 ft/min = 2.237 mph

Pressure Drop - Imperial Units

Steel pipe schedule 80 - pressure drop and velocity diagram - Imperial units

Friction Loss Table

Friction loss table in pdf-format.

1 gal (US)/min =6.30888x10^-5 m³/s = 0.0227 m³/h = 0.06309 dm³(litre)/s = 2.228x10^-3 ft³/s = 0.1337 ft³/min
1 ft/s = 0.3048 m/s
1 psi (lb/in²) = 6,894.8 Pa (N/m²) = 6.895x10^-3 N/mm² = 6.895x10^-2 bar = 27.71 in H₂O at 62^oF (16.7^oC) = 703.1 mm H₂O at 62^oF (16.7^oC) = 2.0416 in mercury at 62^oF (16.7^oC) = 51.8 mm mercury at 62^oF (16.7^oC) = 703.6 kg/m² = 2.307 Ft. H₂O

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Related Topics

Fluid Flow and Pressure Loss - Pipe lines - fluid flow and pressure loss - water, sewer, steel pipes, pvc pipes, copper tubes and more.

Related Documents

ANSI Schedule 80 Steel Pipes - Dimensions - Internal and external diameters, areas, weights, volumes and number of threads for schedule 80 steel pipes.
ASME/ANSI B36.10/19 - Carbon, Alloy and Stainless Steel Pipes - Dimensions - Pipe sizes, inside and outside diameters, wall thickness, schedules, moment of inertia, transverse area, weight of pipe filled with water - U.S. Customary Units.
Darcy-Weisbach Equation - Major Pressure and Head Loss due to Friction - The Darcy-Weisbach equation can be used to calculate the major pressure and head loss due to friction in ducts, pipes or tubes.
Hazen-Williams Friction Loss Equation - calculating Head Loss in Water Pipes - Friction head loss (ft_H2O per 100 ft pipe) in water pipes can be estimated with the empirical Hazen-Williams equation.
Steel Pipes - Maximum Water Flow Capacities vs. Size - Maximum water flow capacities in steel pipes - pipe dimensions ranging 2 - 24 inches.
Steel Pipes Schedule 40 - Friction Loss vs. Water Flow Diagram - Friction loss and velocity diagrams - in imperial (psi/100 ft, ft/s) and SI (Pa/100m, m/s) units.
Steel Pipes Schedule 40 - Pressure Loss - Water flow and pressure loss in schedule 40 steel pipes - Imperial and SI units - gallons per minute, liters per second and cubic meters per hour.
Viscous Liquids - Friction Loss vs. Viscosity and Flow - Friction loss in steel pipes for fluids with viscosities ranging 32 - 80000 SSU.

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