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 designed for fitting to internal combustion engines: oil, water and fuel pumps for motor vehicles etc. This class also includes: - manufacture of industrial taps and valves, including regulating valves and intake taps - manufacture of sanitary taps and valves - manufacture of heating taps and valves - manufacture of hand pumps
This class excludes: - manufacture of valves of unhardened vulcanized rubber, glass or of ceramic materials, see 2219, 2310 or 2393 - manufacture of hydraulic transmission equipment, see 2812 - manufacture of inlet and exhaust valves of internal combustion engines, see 2811