// CODE SNIPPET
69.3.14 LP-gas Systems on Vehicles (Other Than Engine Fuel Systems)
JUMP TO FULL CODE CHAPTER
Subsection 69.3.14 shall not apply to the following:
- Systems installed on mobile homes
- Systems installed on recreational vehicles
- Cargo tank vehicles, cargo tank vehicles (trailers and semitrailers), and similar units used to transport LP-Gas as cargo, which are covered by Chapter 9 of NFPA 58
- LP-Gas engine fuel systems on the vehicles, which are covered by Chapter 11 of NFPA 58
ASME mobile containers shall in accordance with one of the following:
- A MAWP of 312 psig (2.2 MPag) or higher where installed in enclosed spaces of vehicles
- A MAWP of 312 psig (2.2 MPag) or higher where installed on passenger vehicles
- A MAWP of 250 psig (1.7 MPag) or higher for containers where installed on the exterior of nonpassenger vehicles
The capacity of individual LP-Gas containers on highway nonpassenger vehicles shall be 1000 gal (3.8 m3) or in accordance with U.S. Department of Transportation regulations. [58:22.214.171.124(C)]
The capacity of cargo tank motor vehicles shall not be limited by NFPA 58. [58:126.96.36.199(D)]
ASME containers and cylinders utilized for the purposes covered by 69.3.14 shall not be installed, transported, or stored (even temporarily) inside any vehicle covered by 69.3.14, except for ASME containers installed in accordance with 188.8.131.52.4.9, Chapter 9 of NFPA 58, or DOT regulations. [58:184.108.40.206]
The LP-Gas supply system, including the containers, shall be installed either on the outside of the vehicle or in a recess or cabinet vaportight to the inside of the vehicle but accessible from and vented to the outside, with the vents located near the top and bottom of the enclosure and 3 ft (1 m) horizontally away from any opening into the vehicle below the level of the vents. [58:220.127.116.11]
Containers shall be mounted securely on the vehicle or within the enclosing recess or cabinet. [58:18.104.22.168]
Containers shall be installed with road clearance in accordance with 11.8.3 of NFPA 58. [58:22.214.171.124(A)]
Fuel containers shall be mounted to prevent jarring loose and slipping or rotating, and the fastenings shall be designed and constructed to withstand, without permanent visible deformation, static loading in any direction equal to four times the weight of the container filled with fuel. [58:126.96.36.199(B)]
Where containers are mounted within a vehicle housing, the securing of the housing to the vehicle shall comply with this provision. Any removable portions of the housing or cabinet shall be secured while in transit. [58:188.8.131.52(C)]
Where cylinders are located on the outside of a vehicle, weather protection shall be provided. [58:184.108.40.206(H)]
Cylinders installed on portable tar kettles alongside the kettle, on the vehicle frame, or on road surface heating equipment shall be protected from radiant or convected heat from open flame or other burners by the use of a heat shield or by the location of the cylinder(s) on the vehicle. In addition, the following shall apply:
- Cylinder valves shall be closed when burners are not in use.
- Cylinders shall not be refilled while burners are in use as provided in 220.127.116.11(B) of NFPA 58.
Container appurtenances shall be installed in accordance with the following:
- Pressure relief valve installation on ASME containers installed in the interior of vehicles complying with Section 11.9 of NFPA 58 shall comply with 11.8.5 of NFPA 58.
- Pressure relief valve installations on ASME containers installed on the outside of vehicles shall comply with 11.8.5 of NFPA 58 and 18.104.22.168.3.
- Main shutoff valves on containers for liquid and vapor shall be readily accessible.
- Cylinders shall be designed to be filled in either the vertical or horizontal position, or if they are the universal type, they are permitted to be filled in either position.
- All container inlets, outlets, or valves installed in container inlets or outlets, except pressure relief devices and gauging devices, shall be labeled to designate whether they communicate with the vapor or liquid space.
- Containers from which only vapor is to be withdrawn shall be installed and equipped with connections to minimize the possibility of the accidental withdrawal of liquid.
Regulators shall be installed in accordance with 6.10.2 of NFPA 58 and 22.214.171.124.2.1 through 126.96.36.199.2.5. [58:188.8.131.52]
Regulators shall be installed with the pressure relief vent opening pointing vertically downward to allow for drainage of moisture collected on the diaphragm of the regulator. [58:184.108.40.206(A)]
Regulators not installed in compartments shall be equipped with a durable cover designed to protect the regulator vent opening from sleet, snow, freezing rain, ice, mud, and wheel spray. [58:220.127.116.11(B)]
If vehicle-mounted regulators are installed at or below the floor level, they shall be installed in a compartment that provides protection against the weather and wheel spray. [58:18.104.22.168(C)]
Regulator compartments shall comply with the following:
- The compartment shall be of sufficient size to allow tool operation for connection to and replacement of the regulator(s).
- The compartment shall be vaportight to the interior of the vehicle.
- The compartment shall have a 1 in.2 (650 mm2) minimum vent opening to the exterior located within 1 in. (25 mm) of the bottom of the compartment.
- The compartment shall not contain flame or spark-producing equipment.
A regulator vent outlet shall be at least 2 in. (51 mm) above the compartment vent opening. [58:22.214.171.124(E)]
Piping shall be installed in accordance with 6.11.3 of NFPA 58 and 126.96.36.199.1.1 through 188.8.131.52.1.13. [58:184.108.40.206]
Steel tubing shall have a minimum wall thickness of 0.049 in. (1.2 mm). [58:220.127.116.11(A)]
A flexible connector shall be installed between the regulator outlet and the fixed piping system to protect against expansion, contraction, jarring, and vibration strains. [58:18.104.22.168(B)]
Flexible connectors shall be installed in accordance with 6.11.6 of NFPA 58. [58:22.214.171.124(D)]
Flexible connectors longer than the length allowed in the Code, or fuel lines that incorporate hose, shall be used only where approved. [58:126.96.36.199(E)]
The piping system shall be designed, installed, supported, and secured to minimize the possibility of damage due to vibration, strains, or wear and to preclude any loosening while in transit. [58:188.8.131.52(F)]
Piping shall be installed in a protected location. [58:184.108.40.206(G)]
Where piping is installed outside the vehicle, it shall be installed as follows:
- Piping shall be under the vehicle and below any insulation or false bottom.
- Fastening or other protection shall be installed to prevent damage due to vibration or abrasion.
- At each point where piping passes through sheet metal or a structural member, a rubber grommet or equivalent protection shall be installed to prevent chafing.
Gas piping shall be installed to enter the vehicle through the floor directly beneath or adjacent to the appliance served. [58:220.127.116.11(I)]
If a branch line is installed, the tee connection shall be located in the main gas line under the floor and outside the vehicle. [58:18.104.22.168(J)]
Piping systems, including hose, shall be proven free of leaks in accordance with Section 6.16 of NFPA 58. [58:22.214.171.124(M)]
There shall be no fuel connection between a tractor and trailer or other vehicle units. [58:126.96.36.199]
Equipment shall be installed in accordance with Section 6.20 of NFPA 58 and 188.8.131.52.1 and 184.108.40.206.2. [58:6.26.6]
Installation shall be made in accordance with the manufacturer's recommendations and, in the case of approved equipment, as provided in the approval. [58:220.127.116.11]
Paragraph 18.104.22.168 shall apply to the installation of all appliances on vehicles. It shall not apply to engines. [58:22.214.171.124]
Where the device or appliance, such as a cargo heater or cooler, is designed to be in operation while the vehicle is in transit, means, such as an excess flow valve to stop the flow of gas in the event of a line break, shall be installed. [58:126.96.36.199]
Appliances installed in the cargo space of a vehicle shall be readily accessible whether the vehicle is loaded or empty. [58:188.8.131.52]
Appliances shall be constructed or otherwise protected to minimize possible damage or impaired operation due to cargo shifting or handling. [58:184.108.40.206]
Appliances shall be located so that a fire at any appliance will not block egress of persons from the vehicle. [58:220.127.116.11]
A permanent caution plate shall be affixed to either the appliance or the vehicle outside of any enclosure, shall be adjacent to the container(s), and shall include the following instructions:
- Be sure all appliance valves are closed before opening container valve.
- Connections at the appliances, regulators, and containers shall be checked periodically for leaks with soapy water or its equivalent.
- Never use a match or flame to check for leaks.
- Container valves shall be closed when equipment is not in use.
Gas-fired heating appliances and water heaters shall be equipped with automatic devices designed to shut off the flow of gas to the main burner and the pilot in the event the pilot flame is extinguished. [58:18.104.22.168]
Related Code Sections
69.3.14 Liquefied Petroleum Gases and Liquefied Natural Gases, LP-gas Systems on Vehicles (Other Than Engine Fuel Systems)
by Chapter 9 of NFPA 58 LP-Gas engine fuel systems on the vehicles, which are covered by Chapter 11 of NFPA 58 [ 58: 6.26.2 ...
Fire Code 2018 of West Virginia > 69 Liquefied Petroleum Gases and Liquefied Natural Gases > 69.3 Installation of LP-gas Systems > 69.3.14 LP-gas Systems on Vehicles (Other Than Engine Fuel Systems)
22.214.171.124 Commercial Cooking, LP-gas Systems on Vehicles (Other Than Engine Fuel Systems)
58. LP-Gas engine fuel systems on the vehicles, which are covered by Chapter 11 of NFPA 58. [ 58: 6.26.2 ...
Fire Code 2018 of West Virginia > 50 Commercial Cooking > 50.7 Mobile and Temporary Cooking Operations > 50.7.2 Mobile Cooking > 126.96.36.199 LP-gas Systems on Vehicles (Other Than Engine Fuel Systems)
188.8.131.52 Liquefied Petroleum Gases and Liquefied Natural Gases, Piping
)] There shall be no fuel connection between a tractor and trailer or other vehicle units. [ 58: 184.108.40.206] ...
Fire Code 2018 of West Virginia > 69 Liquefied Petroleum Gases and Liquefied Natural Gases > 69.3 Installation of LP-gas Systems > 69.3.14 LP-gas Systems on Vehicles (Other Than Engine Fuel Systems) > 220.127.116.11 Piping
18.104.22.168 Liquefied Petroleum Gases and Liquefied Natural Gases, Installation of Container Appurtenances
in the interior of vehicles complying with Section 11.9 of NFPA 58 shall comply with 11.8.5 of NFPA 58. Pressure relief valve installations on ASME ...
Fire Code 2018 of West Virginia > 69 Liquefied Petroleum Gases and Liquefied Natural Gases > 69.3 Installation of LP-gas Systems > 69.3.14 LP-gas Systems on Vehicles (Other Than Engine Fuel Systems) > 22.214.171.124 Installation of Container Appurtenances
126.96.36.199 Liquefied Petroleum Gases and Liquefied Natural Gases, Equipment Installation
] Equipment installed on vehicles shall be protected against vehicular damage as provided for container appurtenances ...
Fire Code 2018 of West Virginia > 69 Liquefied Petroleum Gases and Liquefied Natural Gases > 69.3 Installation of LP-gas Systems > 69.3.14 LP-gas Systems on Vehicles (Other Than Engine Fuel Systems) > 188.8.131.52 Equipment Installation