Page 284 - 2018_IFC

MOTOR FUEL-DISPENSING FACILITIES AND REPAIR GARAGES

ited to a maximum individual capacity of 20,000 gal- ble or combustible liquids shall be in accordance with Chap-
lons (75 700 L) and an aggregate capacity of 80,000 ter 57 and Sections 2306.6.1 through 2306.6.3.
gallons (302 800 L).
2306.6.1 Protection from damage. Piping shall be
2306.2.5 Portable tanks. Where approved by the fire located such that it is protected from physical damage.
code official, portable tanks are allowed to be temporarily 2306.6.2 Piping, valves, fittings and ancillary equip-
used in conjunction with the dispensing of Class I, II or III ment for above-ground tanks for Class I, II and III liq-
liquids into the fuel tanks of motor vehicles or motorized uids. Piping, valves, fittings and ancillary equipment for
equipment on premises not normally open to the public. above-ground tanks storing Class I, II and III liquids shall
The approval shall include a definite time limit.
comply with Sections 2306.6.2.1 through 2306.6.2.6.
2306.2.6 Special enclosures. Where installation of tanks 2306.6.2.1 Tank openings. Tank openings for above-
in accordance with Section 5704.2.11 is impractical, or ground tanks shall be through the top only.
because of property or building limitations, tanks for liq-
uid motor fuels are allowed to be installed in buildings in 2306.6.2.2 Fill-pipe connections. The fill pipe for
special enclosures in accordance with all of the following: above-ground tanks shall be provided with a means for
making a direct connection to the tank vehicle’s fuel-
1. The special enclosure shall be liquid tight and vapor delivery hose so that the delivery of fuel is not exposed
tight.
to the open air during the filling operation. Where any
2. The special enclosure shall not contain backfill. portion of the fill pipe exterior to the tank extends
3. Sides, top and bottom of the special enclosure shall below the level of the top of the tank, a check valve
be of reinforced concrete not less than 6 inches (152 shall be installed in the fill pipe not more than 12 inches
mm) thick, with openings for inspection through the (305 mm) from the fill-hose connection.
top only. 2306.6.2.3 Overfill protection. Overfill protection
4. Tank connections shall be piped or closed such that shall be provided for above-ground flammable and
neither vapors nor liquid can escape into the combustible liquid storage tanks in accordance with
enclosed space between the special enclosure and Sections 5704.2.7.5.8 and 5704.2.9.7.5.
any tanks inside the special enclosure. 2306.6.2.4 Siphon prevention. An approved antisi-
5. Means shall be provided whereby portable equip- phon method shall be provided in the piping system to
ment can be employed to discharge to the outside prevent flow of liquid by siphon action.
any vapors that might accumulate inside the special 2306.6.2.5 Emergency relief venting. Above-ground
enclosure should leakage occur. storage tanks, tank compartments and enclosed second-
6. Tanks containing Class I, II or IIIA liquids inside a ary containment spaces shall be provided with emer-
special enclosure shall not exceed 6,000 gallons (22 gency relief venting in accordance with Chapter 57.
710 L) in individual capacity or 18,000 gallons (68 2306.6.2.6 Spill containers. A spill container having a
130 L) in aggregate capacity. capacity of not less than 5 gallons (19 L) shall be pro-
7. Each tank within special enclosures shall be sur- vided for each fill connection. For tanks with a top fill
rounded by a clear space of not less than 3 feet (910 connection, spill containers shall be noncombustible
mm) to allow for maintenance and inspection. and shall be fixed to the tank and equipped with a man-
ual drain valve that drains into the primary tank. For
2306.3 Security. Above-ground tanks for the storage of liq-
uid motor fuels shall be safeguarded from public access or tanks with a remote fill connection, a portable spill con-
unauthorized entry in an approved manner. tainer is allowed.
2306.6.3 Piping, valves, fittings and ancillary equip-
2306.4 Physical protection. Guard posts complying with
Section 312 or other approved means shall be provided to ment for underground tanks. Piping, valves, fittings and
protect above-ground tanks against impact by a motor vehicle ancillary equipment for underground tanks shall comply
unless the tank is listed as a protected above-ground tank with with Chapter 57 and NFPA 30A.
vehicle impact protection. 2306.7 Fuel-dispensing systems for flammable or combus-
tible liquids. The design, fabrication and installation of fuel-
2306.5 Secondary containment. Above-ground tanks shall
be provided with drainage control or diking in accordance dispensing systems for flammable or combustible liquid fuels
with Chapter 57. Drainage control and diking is not required shall be in accordance with Sections 2306.7.1 through
for listed secondary containment tanks. Secondary contain- 2306.7.9.2.4. Alcohol-blended fuel-dispensing systems shall
ment systems shall be monitored either visually or automati- also comply with Section 2306.8.
cally. Enclosed secondary containment systems shall be 2306.7.1 Listed equipment. Electrical equipment, dis-
provided with emergency venting in accordance with Section pensers, hose, nozzles and submersible or subsurface
2306.6.2.5. pumps used in fuel-dispensing systems shall be listed.
2306.6 Piping, valves, fittings and ancillary equipment for 2306.7.2 Fixed pumps required. Class I and II liquids
use with flammable or combustible liquids. The design, shall be transferred from tanks by means of fixed pumps
fabrication, assembly, testing and inspection of piping, designed and equipped to allow control of the flow and
valves, fittings and ancillary equipment for use with flamma- prevent leakage or accidental discharge.

2018 INTERNATIONAL FIRE CODE ® 251
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