Objective: This experiment aims to determine the local pressure loss coefficients of different types of fittings. In addition, measurements are to be performed to calculate the pressure loss of every component. Equipment: The experiment set-up is illustrated in Fig.1, while the schematic of it is given in Fig. 2. Technical specifications of the experimental set-up are also given in Table 1. 1 Panel dimensions 2 Panel material 3 Fig. 1. Experimental set-up. Table 1. Technical specifications of the system. Number of measurement points 1800x1200 mm Composite 20 4 Flow range 250-2500 L/h 5 32 mm transparent pipe inner and 33,32 mm 25,27 mm outer diameters 6 7 25 mm transparent pipe inner and 26.68 mm 20.17 mm outer diameters 25 mm PVC pipe inner and outer 25,26 mm, 22,41mm diameters 11 Max. pump head 12 Max. pump flow rate 40 m WC (Water Column) 2100 L/h Fitting Flow Area Velocity Pin Pout rate Loss Coefficient (L/h) Transparent PVC pipe, 32 mm 250 Transparent 250 PVC pipe, 25 mm PVC pipe, 250 25 mm Ball valve, 250 PVC, 25 mm Ball valve, 250 galvanized, 25 mm Gate valve, 250 brass, 25 mm 250 Disc valve, brass, 25 mm