Hydraulic characterization of domestic taps

This work was conductedwith the objective of determining the discharge coefficient values and the characteristic curves (flow-pressure ratio) of two models of metallic silver and bronze domestic taps, with commercial diameters of ¾ and ½ inch. Each tap was subjected to 5 pre-established hydraulic loads (ranging from 2 to 30 m). Flow and discharge coefficient values differ between faucet models. The average flow rate of silver and bronze taps is 37.08 and 18.91 L min-1, respectively. The silver tap has a higher flow rate diameter inches (39.10 L min-1). In the bronze tap the flow rates do not differ according to the diameters. The highest flow values were obtained at 30 m hydraulic load, equal to 32.06 and 66.42 L min-1, in bronze and silver models, respectively, in ¾ inch diameter.