Pipe Calculations

# Water Hammer Caalculation

Calculation of water hammer in various pipes used in water transmission lines.

 Fill in the form below. Pipe type: : Steel HDPE PVC GRP Formül: : Equation 1 Equation 2 Nominal diameter : PN 4 PN 5 PN 6 PN 8 PN 10 PN 12.5 PN 16 PN 20 PN 25 PN 32 15 - 1/2" 20 - 3/4" 25 - 1" 32 - 1 1/4" 40 - 1 1/2" 50 - 2" 65 - 2 1/2" 80 - 3" 100 - 4" 125 - 5" 150 - 6" 200 - 8" 250 - 10" 300 - 12" 350 - 14" 400 - 16" 450 - 18" 500 - 20" 600 - 24" 800 - 32" 900 - 36" 1000 - 40" mm Wall thinkness: : mm Pump Hm : m Pipe length L : m Flow rate : lt/s m³/h kg/h m³/s lt/h kg/s Wave propagation speed : $$\label{eu_Colebrook1} a=\displaystyle\frac{9900}{\sqrt{48.3+K\displaystyle\frac{D_i}{e}}}$$ In (Equation \ref{eu_Colebrook1})'de $$\small a$$ wave propagation speed m/s, $$\small K$$ coefficient of pipe, $$\small D_i$$ inner diameter of pipe mm, $$\small e$$ wall thinkness of pipe mm $$\label{eu_Colebrook2} a=\displaystyle\sqrt {\displaystyle\frac{1}{\rho\left [\displaystyle\frac{1}{K}+\displaystyle\frac{D_i}{Ee} \right]}}$$ In (Equation \ref{eu_Colebrook2}) $$\small K$$ Bulk modulus of fluid Pa, $$\small E$$ Young’s modulus of pipe material Pa, $$\small D_i$$ inner diameter of pipe mm, $$\small e$$ wall thickness of pipe mm $$\rho$$ kg/m3 the fluid density.
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