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Title: Preserving Operator Flexibility In The Use Of Excess Flow Valves
Author: Andrew Lu
Source: American Gas Association 2003
Year Published: 2003
Abstract: The purpose of this paper is to relate technical information on Excess Flow Valve (EFV) installation based upon field experiences from natural gas utilities. The enclosed comments are based upon the collective experiences of operators who choose to voluntarily install EFVs. The findings support the preservation of operator flexibility on Excess Flow Valve (EFV) installation in new and renewed natural gas lines for single-family, residential services where commercially available EFVs exist. Recently, the Office of Pipeline Safety has written a draft cost-benefit study supporting mandatory EFV installation.

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