Assessment of the Local Resistance Coefficient at the Coupling Point of Polypropylene Pipe
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The paper presents results of investigation of the local resistance coefficient in welded polypropylene coupling points with the internal diameter 17 mm. The investigations were performed on an independently constructed test rig. During the research, pressure loss was determined from the differences in the indicators of piezometers connected to the polypropylene pipe. The formula of the relationship between the average velocity of the liquid flow, the coefficient of local resistance and the pressure loss was used. The flow rate of the liquid flow was determined by the volumetric method.
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