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Gas Line Break Detection - Excess Flow Valves (EFVs)

Gas flow valves restrict the flow of gas at meters or appliances during breakages or ruptures in a home’s gas lines.

Suggest a resource
Gas Shut-off Valves Certification Program
California Division of the State Architect
Web Site
EPA Gas Star Partner Update Winter 2005 (PDF)
An article details Excess Flow Valve technology. More info about the EPA Natural Gas Star program is also available.
Web Site
Install Excess Flow Valves - PRO Fact Sheet (PDF)
EPA Natural Gas STAR Program
More info about the EPA Natural Gas Star program is also available.
Web Site
Disclaimer: The information on the system, product or material presented herein is provided for informational purposes only. The technical descriptions, details, requirements, and limitations expressed do not constitute an endorsement, approval, or acceptance of the subject matter by the U.S. Department of Housing and Urban Development (HUD/FHA), The Partnership for Advancing Technology in Housing (PATH), or any PATH-affiliated Federal agency or private company. There are no warranties, either expressed or implied, regarding the accuracy or completeness of this information. Full reproduction, without modification, is permissible.