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Title: Gas Accounting - Operation Of Orifice Meter Chart Integrators
Author: E. S. Messer
Source: 1966 Southwestern Gas Measurement Short Course (Now called ISHM)
Year Published: 1966
Abstract: In the measurement of the volumetric flow of liquids and gases through pipes, it is common practice to insert an orifice metering section in the flow stream. This orifice meter section has an orifice plate with a precision bored hole of smaller diameter than the pipe and the differential pressure created by the flow of gas or liquid as it passes through this restriction is a value that is used for calculating velocity of flow during any increment of time. The mathematical relationship between differential pressure and flow depend on the construction of the orifice and related pipe characteristics. In most cases the flow is a function of the square root of the differential pressure, however, some

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