pipes | jsWater.in - Part 2

pipes

Allowable Leakage

Allowable Leakage in Pipes Formula Allowable leakage during the maintenance stage of pipe carefully laid and well tested during construction is given by: Where, qL = Allowable Leakage in Cu.cm per hour, N = Number of Joints in length D = Diameter of pipe in mm, P = Average Test Pressure during leakage Test in read more

Pipe Headloss – Modified Hazen William

Pipe Headloss : Modified Hazen-William Formula The Modified Hazen Williams formula is derived from Darcy Weisbach formula and is as below; Where, V = Velocity of flow, Cr = Coefficient of Roughness, d = Pipe Diameter/sec, g = Acceleration due to gravity, s = Hydraulic Gradient, v = Viscosity of Fluid For circular conduits, headloss read more

Pipe Headloss : Hazen-William

Pipe Headloss : Hazen-William Formula The Hazen–Williams Equation is an empirical equation widely used in practice. It is especially applicable for smooth pipes of medium and large diameters and pipes that are not attacked by corrosion . For calculating the velocity of flow in pressurized system, hazen william formula is frequetly used and is as below; For read more

Hazen Williams Equation

Hazen Williams Equation The Hazen–Williams Equation is an empirical equation widely used in practice. It is especially applicable for smooth pipes of medium and large diameters and pipes that are not attacked by corrosion . For calculating the velocity of flow in pressurized system, hazen william formula is frequetly used and is as below; For circular conduits, read more

Darcy Weisbach Equation

Darcy Weisbach Equation The Darcy Weisbach Equation for calculating the pipe losses is as below; In the Darcy–Weisbach Equation, the friction factor f  can be calculated from the equation of Colebrook–White.  where k is the absolute roughness of the pipe wall (mm), D the inner diameter of the pipe (mm) and Re the Reynolds number read more