| AC/DC Motors | Lifting equipment | |
| Activated sludge plants/design+ operation | Lining Liquid automizers | |
| Actuators Adsorption/ agents and devices | Liquid level recording equipment | |
| Aerated grit chamber | Macerators | |
| Aeration equipment | Maintenance and cleaning | |
| Aeration plants | Manhole covers | |
| Aeration systems | Measuring, regulating and controlling installations | |
| Aerators. Brush | Measuring, regulating and protection instruments | |
| Alarm equipment | Mechanical treatment of water and waste water | |
| Anaerobic digestion systems | Meteorological instruments | |
| Anaerobic digestion systems/ design + operation | Meters | |
| Analysis apparatus | Mixing tanks for closed circuit aeration of water | |
| Bactericidal agents or biocidolagents | Mobile desalination installation | |
| Bailers | Neutralization plants | |
| Bio-Ceramics water treatment equipment | Non mechanical treatment of water and waste water | |
| Bleed-off control equipment | Odorizing plants for gas | |
| Blowers | Oil separators | |
| Boring pipes, tools and drillings | Operations + maintenance of water + waste water systems | |
| Castings. Cast iron | Oxidation ditch | |
| Castings. Coopers and alloys | Oxidation reduction | |
| Castings. Nodular cast iron | Oxidizing agents | |
| Catalysys | Ozone concentration measuring instruments | |
| Chemical treatment of water and sewage | Ozone generators | |
| Chemical for treatment of water and sewage | Ozonisation plants | |
| Chlorine dioxide plants | PH recording | |
| Choromium reduction | Phosphate removal | |
| Cleaning equipment | Photometer | |
| Coatings | Piezometer pipes (observation pipes) | |
| Coatings and linings Hard and rubber | Pipe cleaning | |
| Compensators, rubber | Pipe systems. Thermo plastic | |
| Compressed air | Pneumatic pressure regulators | |
| Concrete coatings and linings | Polybuthylene | |
| Condensate treatment | Polyethylene area sealing sheets | |
| Conductivity monitors | Precipitation plants | |
| Consultants | Press dryers | |
| Consulting and design offices | Presses. Briquette | |
| Control equipment /systems | Pressure indicators | |
| Coolers/ Cooling towers | Pressure tanks | |
| Cooling water treatment | Process control installation, complete plants | |
| Corrosion inhibitors | Programmable logic controllers (PLC) | |
| Couplings | Quartz gravel | |
| Couplings. Hose | Quartz sand | |
| Cyanide destruction | Rainfall gauges | |
| Data logging/ processing equipment | Reaction tanks | |
| De-aerators | Reagents | |
| Dealkalizing | Recooling plants | |
| Decanters | Recovery plants, solvent | |
| Decarbonization | Refrigerated air dryers | |
| Dechlorination plants | Regulator â flow | |
| Deep sounding | Related water treatment accessories | |
| Degasification of boiler feeding water, plants for | Remote meter reading | |
| Degasing (deaerating) plants | Repair clamps | |
| Degassifiers | Repair clamps. Stainless steel | |
| Demineralization | Respiration measurement | |
| Deoxidation plants for industrial effluents | Reserve osmosis | |
| Desalination | Reserve osmosis, Plants for | |
| Design services | River water intakes | |
| Dewatering equipment | RO water treatment equipment | |
| Digestion chambers and towers | Rotating biological contractors (RBC Units) | |
| Disinfectants | Sampling equipment | |
| Disinfection and (chemical) oxidation plants | Sanitary and water equipment | |
| Disinfection units and systems | Screens | |
| Distillation plants | Screens. Drum | |
| Dosing equipment | Scum skimmers | |
| Dosing plants | Sealant. Silicone | |
| Draining devices | Sedimentation tanks | |
| Drilled wells | Separators | |
| Drilling equipment | Septic tank | |
| Drilling systems | Sewage centrifuges | |
| Drillings | Sewage pumping stations | |
| Drills | Sewage systems, Vacuum | |
| Dry feeders for dry powder, granulates etc. | Sewer manhole | |
| Eccentric screw pumps | Sewer relining | |
| Electric motors | Sewer renovation | |
| Electrical processors for water and sewage treatment | Sewerage | |
| Electrode systems Permanent | Sewerage accessories | |
| Electrodialysis and electro osmosis | Sight flow indicators | |
| Electrodialysis for industrial waste water purification | Sight glasses | |
| Electrolytic separation (general) | Sludge dewatering | |
| Evaporators | Sludge drying, plants for | |
| Evaporators, Sea water | Sludge pasteurization plants, digested | |
| Expansion joints | Sludge, Centrifuges | |
| Fans | Sludge, Collectors | |
| Feeding devices for liquids | Sludge, Concentration measuring instruments | |
| Fermentation towers | Sludge, Density control | |
| Filter accessories | Sludge, Incineration | |
| Filtermedia | Sludge, Pasteurization | |
| Filters for liquids | Sludge, Scrapers | |
| Filters, Air | Sludge, Storage | |
| Filters, Candle | Sludge, Thickening | |
| Filters, Dolomitic media | Sludge, Treatment equipment | |
| Filters, Gravel | Softening (by precipitation) | |
| Filters, Membrane | Softening apparatus, electronic | |
| Filters, Non-woven | Solid/liquid separation | |
| Filters, Pressure | Spray nozzles | |
| Filters, Quartz | Steeling tanks | |
| Filters, Sand | Storage tanks | |
| Filters, Steam | Surface aerators | |
| Filters, Stench | Surface boxes. Cast iron | |
| Filters, Swimming pool | Surveillance of water intakes | |
| Filters, Trickling | Temperature controls | |
| Flanges | Testing equipment | |
| Floatation plants and tanks | Thermal processes for water and sewage treatment | |
| Flocculants agents, miscellaneous | Tilted plate separators | |
| Flocculation plants | Tools | |
| Flow measurement and recorders | Toxicity analysers | |
| Fludized bed furnaces | Trade press | |
| Freezing process (desalting of sea water) | Trickling filters | |
| Galvanic waste water treatment | Tubes | |
| Galvanished water tanks | Turbidity control | |
| Gas detectors | Ultra-violet. Irradiation plants | |
| Gas purification plants | Ultrafiltration | |
| Gas purification plants, washing towers | Utility systems privatization | |
| Gas purification plants with catalysts | Underground hydrants | |
| Gas washer | Vacuum units. High | |
| Heat exchangers | Valves | |
| Heavy metal removal | Waste incinerators and equipment | |
| Hoses. High pressure | Waste matter (industrial or chemical), treatment of | |
| Hoses. Normal pressure | Wastewater, auxiliary materials for treatment of | |
| Hoses. Rubber | Wastewater treatment | |
| Hoses vacuum | Wastewater treatment plants | |
| Hydrants | Wastewater treatment. Tertiary | |
| Hydrobiological instruments | Water containers and accessories | |
| Hydrogen sulphide removal | Water decontamination plants | |
| Hyperfiltration equipment | Water filtration | |
| Incineration, plants for | Water measurements | |
| Industrial fluid coolers | Water supply | |
| Industrial water treatment | Water treatment | |
| Infrastructure development + financial | Water treatment by electrostatic field | |
| Injectors | Water treatment by magnetic separation | |
| Intake ring | Water treatment monitors | |
| Ion exchange, neutralization and stabilization | Water treatments plants | |
| Ion exchangers, softening | Waterflow detectors | |
| Irrigation equipment | Well drilling | |
| Joints journals and books related to water quality | ||
| Laboratory equipment | ||
| Lake water intake | ||
| Leak and pipe detectors | ||
| Level indicators | |
