Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications! Pressure loss (bar/100 m) and velocy in PE, PEH or PVC pipes with water flow.
Pressure drop in PE, PEH or PVC plastic pipes or tubes:
1 Pa = 10 -6 N/mm 2 = 10 -5 bar = 0.1020 kp/m 2 = 1.020x10 -4 m H 2O at 4°C/39°F = 9.869x10 -6 atm = 0.004 in H 2O= 1.450x10 -4 psi (lb f/in 2) = 0.02089 lb f/ft 2 (psf) 1 m 3/s = 3600 m 3/h = 1000 l/s = 35.32 ft 3/s = 2118.9 ft 3/min = 13198 gal(UK)/min = 15850 gal(US liq)/min = 791891 gal(UK)/h = 908.08 qt(US dry)/s 1 m = 3.28083 ft = 39.3701 in Example - pressure drop in a PEH pipe
Pressure drop in a PEH pipe with inside diameter
250 mm (0.25 m) and water flow 50 l/s (0.005 m can be estimated to be approximately 3/s) 0.35 Pa/m (0.035 bar/100 m) as indicated in the diagram below. The flow velocity is approximately 1 m/s.
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