06
Valves of metal (other than parts of machines), in
particular pressure reducing valves, diaphragm safety
valves, check valves, stop valves, distributors, battery
valves, safety assemblies for hot water tanks, built-in
valves; pipes and tubes of metal and composite metals;
fittings, pipe couplings, fittings and accessories for
laying pipes, all goods made of metal and composite metals
09
Sensors for measuring water quality
11
Valves for gases and liquids in the field of home
automation, in particular for drinking water supply systems,
made of metal or composite materials; thermostatic mixing
valves; gas and water piping systems in the field of home
automation; pipe rinsing systems for drinking water systems;
disinfecting systems; filters for drinking water; sanitary
hot water systems
17
Pipes, pipe couplings, fittings, accessories and fittings
for laying pipes, all parts being made of plastic or
composite plastics
19
Pipes and tubes (not of metal)
20
Valves (not of metal), in particular pressure reducers,
safety valves, check valves, valves, stop valves, control
valves for batteries, safety units, valves for hot water
built-in
37
Installation, repair and maintenance of pipeline systems,
tubes, valves, screw couplings, filtering and chemical
disinfection systems
41
Training in the field of drinking water hygiene, study,
installation and operation of systems for the distribution
of sanitary hot and cold water in buildings
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