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Title: Application & Operation Of Ball Valve Regulators
Author: Walter Edrington
Source: 1969 Gulf Coast Measurement Short Course (Now called ASGMT)
Year Published: 1969
Abstract: The use of a full bore valve to control pressure or flow is certainly not new. There has been some type of high capacity control valve used in gas service for many years and the ball valve has been used for control since at least 1961 or 1962. However, the requirements for higher capacities and lower pressure drops have increased the interest in ball valve control devices. As interest increased, more information concerning properly applying the regulator to the application was necessary. The ball valve is not a solve all device and, like any other regulator, must be carefully matched to the application in order to obtain maximum results. There are applications where the ball valve should not be used at all and other applications where no other regulator will do the job so effectively. To better predict the successful application of a ball valve to a regulation requirement, a study of the flow characteristic is necessary.

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