6
Pipes, tanks and tubes of metal; safes; ores; pipework and fittings for circulating fluids and powders; flap valves of metal; water pipe valves [metal]; metal valves not being parts of machines; draw-off valves (metal -) [other than parts of machines]; clack valves of metal [other than parts of machines]; check valves of metal [other than parts of machines]; metal pulleys, springs and valves [not including machine elements]; metal valves for controlling the flow of fluids in pipelines
7
Pumps; Taps and fittings for circulating fluids and powders; mixproof valves for circulating fluids and powders [parts of machines]; valves; hydraulic valves; shutter valves; motorised valves; pneumatically operable valves; pump control valves; power operated valves; actuators for valves; drives for valves; valves for machines; hydraulically operated butterfly valves; valves as machine components; regulating valves [parts of machines]; control valves [parts of machines]; slide valves [parts of machines]; pressure valves [parts of machines]; dosing valves [parts of machines]; dispensing valves being machine parts
9
Apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity; data processing equipment, computers; computer software; electronic valve controllers for regulating the flow of gases, liquids and powders; control valves for regulating the flow of gases, liquids and powders; pneumatic and electronic directional control valves for use in automated production machinery in the food, drug, cosmetic, and chemical industries; electric valves [thermionic]; thermostatically controlled valves; electronic valves [thermionic]; control valves (Electric -); valves (Solenoid -) [electromagnetic switches]; valves (Electric controls for automatically operating -); valves (remote controls for automatically operating -)
11
Apparatus for, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes; mixproof valves for circulating fluids and powders; thermostatic valves; steam valves; mixing valves; water control valves; level control valves; safety valves for water apparatus; stop valves for regulating gas; safety valves for gas apparatus; control devices [thermostatic valves] for heating installations