28.1 – Manufacture of general-purpose machinery

This class includes: - manufacture of internal combustion piston engines, except for motor vehicle, aircraft and motorcycle propulsion engines: • marine engines • railway engines - manufacture of parts suitable for use solely or principally within internal combustion engines (e.g. pistons, piston rings, carburettors and such, except for motor vehicles) - manufacture of inlet and exhaust valves of internal combustion engines - manufacture of turbines and parts thereof: • steam turbines and other vapour turbines • hydraulic turbines, waterwheels and regulators thereof • wind turbines and mills • gas turbines, except turbojets or turbopropellers for aircraft propulsion - manufacture of boiler turbine sets - manufacture of turbine generator sets, consisting of a turbine and a generator mounted together - manufacture of engines for industrial application - factory overhaul of ship and boat engines · This class excludes: - manufacture of electric generators (except turbine generator sets), see 27.11 - manufacture of prime mover generator sets (except turbine generator sets), see 27.11 - manufacture of parts of motor vehicles’ combustion engines, see 29.10 - manufacture of electrical equipment and components of internal combustion piston engines for motor vehicles, see 29.3 - manufacture of pistons, piston rings and carburettors for motor vehicles, see 29.32 - manufacture of internal combustion piston engines for aircraft, see 30.3 - manufacture of aircraft engines, turbojets and turbopropellers, see 30.31, 30.32 - manufacture of motorcycle propulsion engines, see 30.91 - manufacture of pistons, piston rings and carburettors for motorcycles, see 30.91

This class includes: - manufacture of hydraulic and pneumatic power engines and motors, cylinders and valves - manufacture of hydraulic fluid power systems - manufacture of hydraulic transmission equipment - manufacture of hydrostatic transmission equipment · This class excludes: - manufacture of hydraulic or pneumatic tubes, pipes and hoses of rubber, see 22.12 - manufacture of hydraulic or pneumatic tubes, pipes and hoses of plastic, see 22.21 - manufacture of compressors, see 28.13 - manufacture of pumps other than hydraulic fluid power pumps, see 28.13 - manufacture of valves for non-fluid power applications, see 28.14 - manufacture of mechanical power transmission equipment, see 28.15

This class includes: - manufacture of air or vacuum pumps, air or other gas compressors - manufacture of pumps for liquids, whether or not fitted with a measuring device - manufacture of pumps for internal combustion engines (e.g. oil, water and fuel pumps for motor vehicles) · This class also includes: - manufacture of hand pumps · This class excludes: - manufacture of hydraulic fluid power pumps, see 28.12

This class includes: - manufacture of industrial taps and valves, including regulating valves and intake taps - manufacture of taps and valves for sanitary fixtures - manufacture of central heating radiator taps and valves · This class excludes: - manufacture of valves of unhardened vulcanised rubber, glass or ceramic materials, see 22.12, 23.15 or 23.44 - manufacture of inlet and exhaust valves of internal combustion engines, see 28.11 - manufacture of valves for hydraulic or pneumatic transmission and air preparation equipment for use in pneumatic systems, see 28.12