Pressure losses in pipes Experimental determination of important coefficients related to pressure loss in various pipe systems Features - resistances and losses in turbulent pipe flow - closed water circuit with tank and pump - ideal measurement results through long measuring section with several pressure measuring points - precise pressure measurement via annular chambers Learning objectives/experiments - fundamentals of flow measurement - fundamentals of pressure measurement - determination of the friction factor for different pipe materials and diameters - resistance coefficients of pipe bends, enlargements and contractions - pressure losses and opening characteristics of valves and fittings Specification [1] investigation of pressure losses [2] three long pipe sections made of copper and steel with different diameters [3] pipe section with pipe bends [4] pipe section with sudden contraction and enlargement [5] pipe section with interchangeable fittings with different opening characteristics: needle valve, shut-off valve, ball valve [6] determination of the pressure curve along the measuring section with up to 8 pressure measuring points [7] easy pressure measurement via annular chambers [8] pressure and differential pressure measurement with 8 tube manometers, Bourdon tube pressure gauge and electronic differential pressure sensor [9] flow measurement via rotameter and volumetric measuring tank [10] closed water circuit with tank and two-stage centrifugal pump [11] stainless steel tank Technical data 2-stage centrifugal pump - power consumption: 0,37kW - max. flow rate: 4,5m3/h - max. head: 14,7m 3 straight pipe sections, measuring length: 2,5m - copper, diameter: 28x1mm, 22x1mm - steel, diameter: 1/2" Pipe section with pipe bend - copper, diameter: 22x1mm Pipe section with contraction/enlargement - copper - contraction, diameter: 18x1mm - enlargement, diameter: 28x1mm Pipe section with valves and fittings - copper, diameter: 18x1mm Volumetric measuring tank: 20L Tank for water: 110L Measuring ranges - pressure: -1...1,5bar - differential pressure: 1x 0...+/-350mbar, 8x 0...1000mmWC - flow rate: 1x 400...4000L/h 230V, 50Hz, 1 phase 230V, 60Hz, 1 phase; 120V, 60Hz, 1 phase UL/CSA optional LxWxH: 3260x790x1930mm Weight: approx. 340kg