- 23 FLUID SYSTEMS AND COMPONENTS FOR GENERAL USE
- 23.020 Fluid storage devices
- 23.020.01 Fluid storage devices in general
- 23.020.10 Stationary containers and tanks
- 23.020.20 Vessels and containers mounted on vehicles
- 23.020.30 Pressure vessels
- 23.020.40 Cryogenic vessels
- 23.020.99 Other fluid storage devices
- 23.040 Pipeline components and pipelines
- 23.040.01 Pipeline components and pipelines in general
- 23.040.10 Iron and steel pipes
- 23.040.15 Non-ferrous metal pipes
- 23.040.45 Plastics fittings
- 23.040.50 Pipes and fittings of other materials
- 23.040.70 Hoses and hose assemblies
- 23.040.80 Seals for pipe and hose assemblies
- 23.040.99 Other pipeline components
- 23.060.01 Valves in general
- 23.060.20 Ball and plug valves
- 23.060.40 Pressure regulators
- 23.100 Fluid power systems
- 23.100.01 Fluid power systems in general
- 23.100.10 Pumps and motors
- 23.100.40 Piping and couplings
- 23.100.50 Control components
- 23.100.99 Other fluid power system components
- 23.120 Ventilators. Fans. Air-conditioners
- 23.140 Compressors and pneumatic machines
           Last updated: 12/5/2001