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Title: INTRODUCTION TO GAS REGULATORS
Author: ROBBIE SWIGERT
Source: 2019 Western Gas Measurement Short Course
Year Published: 2019
Abstract: A gas regulator is a device designed to reduce inlet pressure, which may vary, to a constant lower outlet pressure. It controls the flow of gas to meet downstream demand. The regulator will shut off bubble tight between the inlet pressure side and the outlet pressure side when there is no downstream demand. Safeguards against downstream over pressurization, such as an internal relief valve or internal monitor orifice, are built into many regulators. The ideal regulator would reduce widely varying inlet pressure to a perfectly constant outlet pressure. It would do this from zero flow to the maximum flow capacity of the regulator.

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