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Title: Fundamental Principles Of Pilot-Operated Regulators
Author: Steve. Berry
Source: 2003 International School of Hydrocarbon Measurement
Year Published: 2003
Abstract: A pressure-reducing regulator must supply a quantity of flow that matches a downstream, usage, demand. If the required flow rate is small, the regulator plug or disk should approach its seat and restrict the flow. If the demand increases, the plug or disk should move away to create a larger opening. Ideally, a regulator should provide a constant downstream pressure while delivering the required flow. Therefore, regulators automatically adjust the flow rate to meet the downstream demand.