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- EXCESS FLOW VALVE NOTICE ... An Excess Flow Valve (EFV) is a mechanical device installed inside a natural gas distribution service line between the street and meter. EFV's are designed to shut off the flow of natural gas automatically if the service line breaks. EFV's are designed so that general usage, such as turning on appliances, will not trip the valve.
EFV's are not installed on service lines that operate at pressures less than 10 psig, or large service lines with high flow rates. Certain other conditions may also prohibit the installation of an EFV
If an existing service line is not already equipped with an EFV, a customer may request that Valley Energy install an EFV on an existing eligible gas service line, at a mutually agreed date. The cost to install the device is paid by the customer. Costs will vary, however; the minimum estimated cost is $1,500. To install the excess flow valve, Valley Energy will excavate the service line at its connection to the gas mainline piping that runs down your street. We will then turn off your gas service line, install the excess flow valve, backfill the excavation and relight your appliances. Under certain conditions, we may need to replace your entire gas service at no additional cost.
Since an excess flow valve must be sized to operate properly under current load conditions, any significant load changes that would require a larger meter, such as installing an emergency generator or pool heater, may also require the replacement of the EFV at an additional cost.
Call (570) 888-9664 or (800) 998-4427 to inquire about having an EFV installed on your gas service line.