NFPA NFPA 57 Handbook 2002 Free Download: Liquefied Natural Gas (LNG) Vehicular Fuel Systems Code

On comparing the current version of NFPA 57, the Liquefied Natural Gas (LNG) Vehicular Fuel Systems Code (2002), with the previous version. Here are the key differences: 1. Scope and Applicability: - Current Version (2002): - Applies to the design, installation, operation, and maintenance of LNG engine fuel systems on vehicles of all types. - Covers associated fueling (dispensing) facilities. - Includes LNG to CNG facilities with LNG storage in ASME containers of 70,000 gallons or less. - Encompasses marine, highway, rail, off-road, and industrial vehicles. - Exempts vehicles complying with federal motor vehicle safety standards for LNG fuel systems (except for specific sections). - Previous Version: - Similar scope but without specific exemptions for vehicles meeting federal safety standards. 2. Content Enhancements: - Current Version (2002): - Provides more comprehensive guidelines for LNG vehicle fuel systems. - Addresses pressure relief devices, gauges, regulators, valves, pumps, compressors, vaporizers, and piping/tubing. - Includes provisions for ASME tanks (siting, seismic design, installation). - Previous Version: - May have been less detailed or lacked specific provisions. 3. Safety and Security: - Current Version (2002): - Emphasizes overall fire protection, safety, and security in LNG vehicular fuel systems. - Previous Version: - Likely had safety provisions but may not have been as robust. 4. Marine Vessels: - Current Version (2002): - Specifies requirements for LNG fuel systems on commercial marine vessels and pleasure craft. - Previous Version: - May not have included specific marine vessel guidelines. In summary, the 2002 version of NFPA 57 expands on safety, covers a wider range of vehicles, and provides more detailed guidance compared to its predecessor.