Hydraulic Characteristics of the Locking Element in the form of a “Curved Drop” for Water Supply Fittings


Alexander P. Svintsov,Nikolay A. Konoplev,




Water fittings,Valve,Water flow (discharge),,Closure member -disc pair,Hydraulic characteristic,


The efficient design of valves for the water supply system requires knowledge of the parameters and regularity of change in the hydraulic characteristics of the locking pair. The article contains the results of a study of regularity of change in the hydraulic characteristics of the locking element in the form of a "curved drop" for plumbing fittings. The numerical values and the patterns of change in the hydraulic characteristics of liquid outflow through the hole in the form of a "curved drop", made in a thin wall defined. The patterns of change in water discharge identified, and the comparison of characteristics for different bore shape. The ability to adjustment the flow of water depends on the shape of through hole. The values and regularity of change in the hydraulic characteristics of the locking element in the form of a " curved drop" for water reinforcement obtained on the basis of theoretical and experimental studies. The results of the study are of interest in the theoretical and practical aspects for the design and manufacture of valves for water supply. The results of theoretical and experimental studies show that the form of "a curved drop" for plumbing fittings allows to have a linear change in water consumption depending on the opening tap. The coefficients allow us to design the plumbing fittings valve type with a high regulating capacity. The use of the locking element with a hole in the shape of a "curved drop" allows to reduce the loss of tap water of drinking quality. Water savings for the house for three persons is 12-15% compared to valves of other types. The study is in the continuation.


I.Al’tshul’, A.D. (1982). Hydraulic resistance. Publishing House “Nedra”,Moscow, Russia.

II.Barringer, M., Thole, K.A., Krishnan, V., Landrum, E. (2013). Manufacturing Influences on Pressure Losses of Channel Fed Holes. J. Turbomachinery,136(5):051012-051012-10.doi: 10.1115/1.4025226

III.Deo, R. (2013). Comparative Analysis of Turbulent Plane Jets from a SharpEdged Orifice, a Beveled-Edge Orifice and a Radially Contoured Nozzle. World Academy of Science, Engineering and Technology, International Science Index 84, Int. J. Mechanical, Aerospace, Industrial, Mechatronic and Manufacturing Engineering, 7(12): 2584-2593.Available online at:http://waset.org/publications/9996967

IV.Dey, S. (2014). Fluvial Hydrodynamics: Hydrodynamic and Sediment Transport Phenomena. Springer-Verlag, Berlin.

V.Fominykh, A.V., Il’inyh, E.A., Chinjaev, I.R., Poshivalov, E.A. (2016). The determination of hydraulic and cavitating characteristics of the cell valve. Vestnik Kurganskoj gosudarstvennoj sel’skohozjajstvennoj akademii im. T.S. Mal’ceva (Lesnikovo), 1(17): 71-75.

VI.Ghahremanian, S., Svensson, K., Tummers, M.J., Moshfegh, B. (2014). Hear-field mixing of jets issuing from an array of roundnozzles. Int. J. Heat and Fluid Flow, 47: 84-100.Available online at: https://doi.org/10.1016/j.ijheatfluidflow.2014.01.007

VII.Hashid, M., Hussain, A., Ahmad, Z. (2015). Discharge characteristics of lateral circular intakes in open channel flow. FlowMeasurementand Instrumentation,46(A): 87-92.Available online at:https://doi.org/10.1016/j.flowmeasinst.2015.10.005

VIII.Hussain, A., Ahmad, Z., Asawa, G.L. (2010). Dischargecharacteristics of sharp-crested circular side orifices in open channels. FlowMeasurementand Instrumentation, 21(3): 418-424.Available online at: https://doi.org/10.1016/j.flowmeasinst.2010.06.005

IX.Hussain, A., Ahmad, Z., Ojha, C.S.P. (2014). Analysis of flow through lateral rectangular orifices in open channels. Flow Measurement and Instrumentation,36:32-35.Available online at: https://doi.org/10.1016/j.flowmeasinst.2014.02.002

X. Hussain, A., Ahmad, Z., Ojha, C.S.P. (2016). Flow through lateral circular orifice under free and submerged flow conditions. FlowMeasurementand Instrumentation,52: 57-66.Available online at: https://doi.org/10.1016/j.flowmeasinst.2016.09.007

XI.Kondrat’ev, A.S. (2010). Leaking of Liquid form Outer Cylinder Nozzles. Vestnik Moskovskogo gorodskogo pedagogicheskogo universiteta. Serija: Estestvennye nauki,2:14-20.

XII.Kulichkova, E.A. (2016). Reducing pulse vibration of valves under transient conditions. Vestnik Samarskogo universiteta. Ajerokosmicheskaja tehnika, tehnologii i mashinostroenie, 15(2): 145-151.

XIII.Kuznecov, V.S., Shablovskij, A.S., Jaroc, V.V. (2014). The influence of facets within the inlet edge of cylindrical probe on the discharge coefficient. Vestnik Moskovskogo gosudarstvennogo tehnicheskogo universiteta im. N.Je. Baumana. Serija: Mashinostroenie,5(98):46-52.

XIV.Ljutikova, M.N. (2012). Model of influence of crack-like defects appreciation on strength and hydraulic characteristics of a pipeline. Avtomatizacija, telemehanizacija i svjaz’ v neftjanoj promyshlennosti, 2: 38-40.

XV.Pil’gunov, V.N.& Efremova, K.D. (2015). Features of the Viscous Fluids Effluent through non-round shape edge orifices. Nauka i obrazovanie: nauchnoe izdanie MGTU im. N. Je. Baumana, 2: 1-23.

XVI.Posohin, V.N., Ziganshin, A.M., Batalova, A.V. (2012). To defintion of pressure loss coefficients of disturbing elements in pipeline systems. Izvestija vysshih uchebnyh zavedenij. Stroitel’stvo, 9(645): 108-112.

XVII.Posohin, V.N., Ziganshin, A.M., Varsegova, E.V. (2016). Calculation of minor losses. Report 1. Izvestija vysshih uchebnyh zavedenij. Stroitel’stvo, 4(688): 66-73.

XVIII.Saha, R., Mamaev, B.I., Fridh, J., Laumert, B., Fransson, T.H. (2014). Influence of Prehistory and Leading Edge Contouring on Aero Performance of a Three-Dimensional Nozzle Guide Vane. J. Turbomachinery, 136(7):071014-071014-10. doi: 10.1115/1.4026076

XIX.Svintsov, A.P., Harun, M.I., Mukarzel’, S.A. (2015). Valve head for water fittings with high regulatory capacity. Magazine of Civil Engineering,6(58):8-18. DOI: 10.5862/MCE.58.2

XX.Svintsov, A.P., Mukarzel, S.A., Kharun, M. (2016). Method of Determining the Orifice Area of Valve Head Locking Pairs of Water Fittings. J. Urban Environ. Engng,10(1):57-61.DOI:10.4090/juee.2016.v10n1.057061

XXI.Zvyagincev, V.V. (2016). Optimization of the internal sizes of connecting elements of pressure pipelines according to hydraulic characteristics. Vestnik Vostochno-Sibirskogo gosudarstvennogo universiteta tekhnologij i upravleniya (Ulan-Udeh), 1: 11-14

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