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 22190 (Manufacture of other rubber products), 2310 (Manufacture of glass and glass products) or 23930 (Manufacture of other porcelain and ceramic products); - manufacture of hydraulic transmission equipment, see 28120 (Manufacture of fluid power equipment); - manufacture of inlet and exhaust valves of internal combustion engines, see 28110 (Manufacture of engines and turbines, except aircraft, vehicle and cycle engines).