Page 94 - 2018_IFGC

GAS PIPING INSTALLATIONS

SECTION 413 (IFGC) [F] 413.4 Residential fueling appliance installation. Resi-
COMPRESSED NATURAL GAS MOTOR dential fueling appliances shall be installed in accordance
VEHICLE FUEL-DISPENSING FACILITIES with Sections 413.4.1 through 413.4.3.
[F] 413.1 General. Motor fuel-dispensing facilities for CNG [F] 413.4.1 Listing and installation. Residential fueling
fuel shall be in accordance with this section and the Interna- appliances shall be listed in accordance with ANSI NGV
tional Fire Code. The operation of CNG motor fuel-dispens- 5.1. Residential fueling appliances shall be installed in
ing facilities shall be regulated by the International Fire accordance with the appliance manufacturer’s installation
Code. instructions.
[F] 413.2 General. Storage vessels and equipment used for [F] 413.4.2 Gas connection. Residential fueling appli-
the storage, compression or dispensing of CNG shall be ances shall not be rigidly connected to the gas supply pip-
approved or listed in accordance with Sections 413.2.1 ing.
through 413.2.3. [F] 413.4.3 Indoor installation. A residential fueling
[F] 413.2.1 Approved equipment. Containers; compres- appliance installed indoors or used for indoor fueling shall
sors; pressure-relief devices, including pressure-relief comply with all of the following:
valves; and pressure regulators and piping used for CNG 1. The capacity shall not exceed 5 cubic feet per min-
shall be approved. ute (0.14 m /min) of natural gas.
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[F] 413.2.2 Listed equipment. Hoses, hose connections, 2. Fuel gas from the pressure relief and blowdown sys-
dispensers, gas detection systems and electrical equipment tems shall be vented to the outdoors.
used for CNG shall be listed. Vehicle fueling connections 3. A methane gas detector shall be installed in the
shall be listed and labeled.
room or space containing the appliance or where
[F] 413.2.3 General. Residential fueling appliances shall fueling occurs and shall be located not lower than 6
be in accordance with Section 413.4. inches (152 mm) from the highest point in the room
[F] 413.3 Location of dispensing operations and equip- or space. The detector shall be set to activate at one-
ment. Compression, storage and dispensing equipment shall fifth of the lower limit of flammability of natural gas
be located outdoors, above ground. and shall be interlocked with the residential fuel
appliance to stop or prevent its operation upon acti-
Exceptions:
vation. The detector shall have an audible or visible
1. Compression, storage or dispensing equipment is not alarm.
prohibited in buildings where such buildings are of
noncombustible construction as set forth in the 4. The capacity of a residential fueling appliance
International Building Code and are unenclosed for installed outdoors for outdoor fueling shall not
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not less than three-quarters of their perimeter. exceed 10 feet cubic per minute (0.28 m /min) of
natural gas. Residential fueling appliances located
2. Compression, storage and dispensing equipment is outdoors shall be installed on a firm, noncombusti-
allowed to be located indoors or in vaults in accor- ble base.
dance with the International Fire Code.
[F] 413.5 Private fueling of motor vehicles. Self-service
[F] 413.3.1 Location on property. In addition to the fuel- CNG-dispensing systems, including key, code and card lock
dispensing requirements of the International Fire Code, dispensing systems, shall be limited to the filling of perma-
compression, storage and dispensing equipment not nently mounted fuel containers on CNG-powered vehicles.
located in vaults complying with the International Fire
Code and other than residential fueling appliances shall In addition to the requirements in the International Fire
not be installed: Code, the owner of a self-service CNG-dispensing facility
shall ensure the safe operation of the system and the training
1. Beneath power lines. of users.
2. Less than 10 feet (3048 mm) from the nearest build- [F] 413.6 Pressure regulators. Pressure regulators shall be
ing or property that could be built on, public street, designed, installed or protected so their operation will not be
sidewalk or source of ignition. affected by the elements (freezing rain, sleet, snow, ice, mud
Exception: Dispensing equipment need not be or debris). This protection is allowed to be integral with the
separated from canopies that provide weather regulator.
protection for the dispensing equipment and are [F] 413.7 Valves. Piping to equipment shall be provided with
constructed in accordance with the International a remote manual shutoff valve. Such valve shall be provided
Building Code. with ready access.
3. Less than 25 feet (7620 mm) from the nearest rail of [F] 413.8 Emergency shutdown control. An emergency
any railroad track. shutdown device shall be located within 75 feet (22 860 mm)
4. Less than 50 feet (15 240 mm) from the nearest rail of, but not less than 25 feet (7620 mm) from, dispensers and
of any railroad main track or any railroad or transit shall also be provided in the compressor area. Upon activa-
line where power for train propulsion is provided by tion, the emergency shutdown system shall automatically
an outside electrical source, such as third rail or shut off the power supply to the compressor and close valves
overhead catenary. between the main gas supply and the compressor and
5. Less than 50 feet (15 240 mm) from the vertical between the storage containers and dispensers.
plane below the nearest overhead wire of a trolley [F] 413.9 Discharge of CNG from motor vehicle fuel stor-
bus line. age containers. The discharge of CNG from motor vehicle

2018 INTERNATIONAL FUEL GAS CODE ® 81
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