Pipeline Safety - Expanding the Use of Excess Flow Valves in Gas Distribution Sy
30,27 €
Updated as of May 29, 2018 Excess flow valves (EFV), which are safety devices installed on natural gas distribution pipelines to reduce the risk of accidents, are currently required for new or replaced gas service lines servicing single-family residences (SFR), as that phrase is defined in 49 CFR 192.383(a).
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