Excess Flow Valve
An excess flow valve (EFV) is designed to shut off the flow of natural gas automatically if the service line breaks, for example, by an excavation accident. Stopping the flow of gas from a broken service line significantly reduces the risk of natural gas fire, explosion, personal injury and/or property damage.
Beginning in 2010, it was mandatory that JCCUD install an EFV when we ran your service line. If you had service prior to 2010 and you would like an EFV installed on your service line, you may call the office in order to get a quote. You will be billed for the actual cost of installing the EFV. The actual installation cost will depend on the difficulty of installation. We will inform you of the actual cost before you make the final decision of wanting an EFV.
EFVs are designed to close if excessive flow occurs. Normally this excess flow condition only occurs if a buried service line is ruptured or severed. This means a small leak beyond the gas meter (on house piping or appliances) will not cause the EFV to operate. Beware, that small leaks are still possible and should always be addressed if suspected.
If it becomes necessary to maintain or replace the EFV on your service line, you will be billed for the actual cost of replacing the EFV. The actual replacement cost will depend on the difficulty of replacement.
EFVs cannot be installed on some service lines due to high gas flow, low pressure or other factors. If you request an EFV, we will inform you if your service line cannot accommodate an EFV.
As always for safety, call 811 to have the gas lines and other buried utilities marked before beginning any digging on your property.