27-51 CONSIDERAŢII PRIVIND CERCETĂRILE EXPERIMENTALE REALIZATE PE UN MODEL DE VANĂ FLUTURE


CONSIDERATIONS REGARDING THE EXPERIMENTAL RESEARCH PERFORM BY AN BUTTERFLY VALVE MODEL
The paper presents experimental research performed on a model of butterfly valve in the test stand of the testing laboratory to determine the functional parameters of a prototype butterfly valves ND 4900 mm who operating at a pressure NP17 bar. The valve model is designed and executed based on design and the size butterfly valve prototype applying Froude similarity criterion. It is presented the test stand and the experimental research results obtained regarding to determining the hydraulic resistance coefficient and consequently the flow coefficient and the determination of forces and moment coefficients, the coefficient of cavitation and vibration level.
Keywords: Experimental research, butterfly valve model, testing stand, coefficients
Cuvinte cheie: cercetări experimentale, model de vană fluture, stand de încercări, coeficienţi

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