• Kuldeep Narwat

A butterfly valve is a type of flow control system which is commonly used to control a fluid that flows through a pipe segment. Analysis and optimisation are actually of particular importance in the design and use of butterfly valves. Finite element method (FEM) is often used for the analysis to predict valve disk protection, and computational fluid dynamics (CFD) is widely used to analyse valve flow characteristics. However, due to the high non-linarites, reliable results are difficult to obtain for optimizing butterfly valve. This reason there is widespread use of met models or replacement model methods. This paper combines the met model with the FEM and CFD research to optimize a conventional butterfly valve, where the design goal is the weight of the valve disk, and the strength of the disk and the pressure loss coefficient of the valve are constraints. Ball and butterfly valves are quarter-turn style valves which are commonly used in the oil and gas industry to stop and start (isolate and open) the fluid flow. Ball valves have a very robust nature and for aggressive process services involving flammable and potentially dangerous fluids such as hydrocarbons they are a very common option. Butterfly valves in process facilities are not as robust as ball valves, and thus require higher maintenance costs.

Ball Valve, Butterfly Valves, Fluid Analysis, Globe Valve, Pressure Loss Coefficient.

"A Literature Review of Butterfly Valves", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 1, page no.188-194, January 2019, Available :http://www.jetir.org/papers/JETIREO06042.pdf

"A Literature Review of Butterfly Valves", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 1, page no. pp188-194, January 2019, Available at : http://www.jetir.org/papers/JETIREO06042.pdf