Analytical Assessment of Valve Throughput Coefficient

The current level of industry development for the gas and oil production equipment requires engineering methods calculating hydraulic characteristics manufactured products. Due to complexity designs distribution control units transportation networks, their components increasingly affect performance regulation. In construction units, pipeline fittings are used, in particular, wedge gate valves shut-off valves. One main these products is throughput, which assessed by throughput coefficient. Therefore, now design engineer needs simple accurate determine theoretical value coefficient at stages product. related resistance passage part fittings, because it affects pressure reduction when fluid moves from inlet outlet There determining local caused a change geometry passageway, based on Weisbach formula empirically determined coefficients. Engineering proposed two types - valve valve. well-established approach, expressed use connection with set resistances that arise path working medium. information about values obtained possibility approximation obtain intermediate indicators. geometric features channels under consideration taken into account. They compared existing nomenclature coefficients resistance. make possible reduce time carrying out calculations obtaining result whose accuracy sufficient calculations. Expressions allow valve, taking account relative position flow sections valves, as well physical properties