NFPA 51: Standard for the Design and Installation of Oxygen-Fuel Gas Systems for Welding, Cutting, a

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Reduce the risk of fire and explosions with the 2013 NFPA 51 governing oxygen-fuel gas systems.

NFPA 51: Standard for the Design and Installation of Oxygen-Fuel Gas Systems for Welding, Cutting, and Allied Processes provides the latest fire safety requirements for gas-fueled systems. This 2013 edition was reorganized to coordinate with the maximum allowable quantities per storage area (MAQ) and building controls in NFPA 55: Compressed Gases and Cryogenic Fluids Code, NFPA 1: Fire Code, NFPA 400: Hazardous Materials Code, and NFPA 5000®: Building Construction and Safety Code®.

Only the 2013 edition includes:

  • Updated and clarified requirements for oxygen manifolds, including allowable pressures
  • New protocols for mobile acetylene trailer systems coordinate with NFPA 51A: Standard for Acetylene Cylinder Charging Plants

Industry professionals, design engineers, and code enforcement officials need NFPA 51 for the latest guidance on cylinder storage, system manifolding and piping, and associated protective equipment such as regulators. The Standard also includes provisions for the use of acetylene generators, calcium carbide storage for acetylene generators, and mobile acetylene trailer systems. (Softbound, 21 pp., 2013)

NFPA® 51 Standard for the Design and Installation of Oxygen-Fuel Gas Systems for Welding, Cutting, and Allied Processes 2013 Edition

Chapter 1 Administration
1.1 Scope
1.2 Purpose
1.3 Retroactivity
1.4 Equivalency
1.5 Fuel Gases in the Liquid Phase
1.6 Operations and Fire Prevention Practices
1.7 Material-Oxygen Compatibility
1.8 Cylinders and Containers
1.9 Units and Formulas.
Chapter 2 Referenced Publications
2.1 General
2.2 NFPA Publications
2.3 Other Publications
2.4 References for Extracts in Mandatory Sections
Chapter 3 Definitions
3.1 General
3.2 NFPA Official Definitions
3.3 General Definitions
Chapter 4 Cylinders and Containers
4.1 Fabrication and Marking
4.2 Cylinder Storage and Use - General
4.3 Fuel Gas Cylinder Storage
4.4 Oxygen Cylinder Storage
4.5 Gas Cabinets
4.6 Exhausted Enclosures
4.7 Gas Rooms
Chapter 5 Manifolding of Cylinders
5.1 Fuel Gas Manifolds
5.2 High-Pressure Oxygen Manifolds
5.3 Low-Pressure Oxygen Manifolds
5.4 Portable Outlet Headers
Chapter 6 Piping Systems
6.1 Materials and Design
6.2 Piping Joints
6.3 Installation
6.4 Cleaning
6.5 Testing
6.6 Painting and Signs
Chapter 7 Protective Equipment, Hose, and Regulators
7.1 General
7.2 Pressure Relief for Piping Systems
7.3 Piping Protective Equipment
7.4 Station Outlet Protective Equipment
7.5 Hose and Hose Connections
7.6 Pressure-Reducing Regulators
Chapter 8 Acetylene Generators
8.1 Listing and Marking
8.2 Rating and Pressure Limitations
8.3 Location
8.4 Stationary Acetylene Generators (Automatic and Nonautomatic)
8.5 Outside Generator Houses and Inside Generator Rooms for Stationary Acetylene Generators
Chapter 9 Calcium Carbide Storage
9.1 Packaging
9.2 Storage in Buildings
9.3 Storage Outside Buildings
Chapter 10 Mobile Acetylene Trailer Systems
10.1 General Provisions
10.2 Discharge Stations at Consumer Sites
10.3 Indoor Discharge Stations
10.4 Instructions
10.5 Fire Protection
Annex A Explanatory Material
Annex B Informational Reference