Apparatus and instruments for control, detection, measuring, indication, timing, distribution, transformation, inspection, perception, monitoring, signaling, accumulation, adjustment or regulation; apparatus for checking, maintenance and regulation of pressure, namely push-button valves; parts and fittings of the aforesaid goods.

Expansion tanks for heating systems, for closed heating systems, for closed refrigeration systems and for water supply systems; expansion boxes for heating systems, for closed heating systems, for closed refrigeration systems and for water supply systems; apparatus, installations and instruments for heating, steam generation, distribution of water, water flow, refrigeration and sanitary installations purposes; pressurized water tanks; hydraulic accumulator; water tanks used for controlling and monitoring water pressure; water tanks containing compressors for use in heating, solar heating and water cooling systems; safety valves for HVAC systems (heating, ventilation and air-conditioning), for water apparatus, for heating installations, solar energy systems and refrigerating installations; valves as parts of radiators and HVAC (heating, ventilation and air-conditioning) systems; check valves; air filters; water filters; water purifying equipment, namely separators of impurities, sludge and magnetite (black iron oxide); water purification equipment for heating, solar heating and cold water systems, namely microbubble, sludge, oxygen and magnetite (black iron oxide) aerators; equipment for purifying water for use in heating, solar and water cooling systems, namely vacuum deaerators for removing gas from liquids; vacuum de-aerator systems; water purification apparatus for heating, solar heating and cold water systems, namely vacuum de-aerator for removing gas from liquids; air purification apparatus; ventilation apparatus; gas purification apparatus; heat exchangers; parts and fittings of the aforesaid goods.