Valving and Fittings
The valvings and fittings of hydrogen fueling station balance-of-plant components are addressed in these codes and standards:
ASME B31.3, Process Piping (American Society of Mechanical Engineers, 2006)
- IX K306 Fittings, Bends, and Branch Connections
- IX K307 Valves and Specialty Components
CGA G-5.4, Standard for Hydrogen Piping Systems at Consumer Locations (Compressed Gas Association, 2005)
- 3.3.2 Isolation Valves
- 3.3.3 Emergency Isolation Valves
- 3.3.4 Excess Flow Valves
- 3.3.5 Check Valves
- 3.3.7 Gasket and Sealing Materials
- 3.3.8 Additional Requirements
- 5.0 Installation
- 5.1 Installation General
International Fire Code (International Code Council, 2006)
- 2209.5.2 Emergency Shutoff Valves
- 2211.8.1.2.4 Grounding and bonding
- 2703.2.2 Piping, Tubing, Valves, and Fittings
- 2703.9.3 Protection from Vehicles
- 2703.10.1 Valve Protection
- 2705.1.10 Liquid Transfer
- 3003.6 Valve Protection
- 3005.3 Piping Systems
- 3005.4 Valves
- 3203.2.6 Shutoffs Between Pressure Relief Devices and Containers
- 3205.1.2 Piping Systems
- 3205.3.2 Emergency Shutoff Valves
- 3503.1.3 Emergency Shutoff
NFPA 52, Vehicular Fuel Systems Code (National Fire Protection Association, 2006)
- 5.9 Valves

