Over the years, butterfly valves have become increasingly popular due to the thin profile between their flanges. The butterfly valve weighs less than other valves and has a smaller footprint and lower initial cost. A butterfly valve is a flow regulating disc valve in which the obturator rotates about an axis that is at right angles to the direction of flow. In other words, the butterfly valve consists of a disc in which a rod is constructed by an intermediate or additional offset. When opened, the valve flaps 90 degrees in the valve bore, in line with the direction of fluid flow, and the fluid passes smoothly; the butterfly valve…