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Title: Fundamentals Of Pressure Regulation
Author: John m. Kruse
Source: 2001 American School of Gas Measurement Technology
Year Published: 2001
Abstract: A gas pressure regulator is an automatic device which controls the media flow and maintains a desired media pressure while reducing the media supply pressure. The basic regulator could be an operator at a control valve watching a pressure gauge. The valve is manually opened to allow the line pressure to achieve the desired gauge setting. The operator then visually monitors the gauge and either opens the valve or closes it to maintain the desired pressure. The problem with this system is it would require full time operators for daily operation and continuous monitoring of the gauge. The regulator products on the market do not monitor the gauge. However, via monitoring the outlet pressure, they do automatically open and/or close the valve to control the outlet pressure at an established value. The manually operated regulator is still employed by gas companies to provide uninterrupted service during repairs or replacement of a regulator on a single feed system.

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