Excess flow valve natural gas
Excess Flow Valve for Natural Gas
An Excess Flow Valve (EFV) is a safety device installed in natural gas pipelines to automatically shut off gas flow if there is a sudden rupture or leak.
How It Works
- Detects unusual gas flow due to a pipeline break.
- Closes to prevent uncontrolled gas release.
- Allows limited flow for leak detection.
Types of Excess Flow Valves for Natural Gas
- Residential EFVs – Used in home gas service lines.
- Commercial EFVs – Installed in businesses and industrial sites.
- Underground Pipeline EFVs – Protect large gas distribution lines.
Benefits of Using an EFV
- Prevents gas leaks and potential explosions.
- Reduces fire hazards by stopping excess gas flow.
- Enhances safety for homes and businesses.
- Complies with safety regulations for gas installations.
Installation Considerations
- Installed at the gas meter or service line.
- Pressure and flow rate must match system requirements.
- Requires professional installation by a gas technician.
Maintenance & Inspection
- Regular testing ensures proper functionality.
- Check for blockages or debris in the valve.
- Replace if damaged or if it fails to close during a gas leak.
