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Categories
- 1 Planning, invitation to tender, construction supervision
- 2 Construction, plant construction
- 3 Domestic and private property drainage
- 4 Sewer systems
  - 4.1 Pipes
  - 4.2 Mouldings, flanges
  - 4.3 Interceptors
  - 4.4 Outlets
  - 4.5 Fittings
    - 4.5.1 Shut-off valves
    - 4.5.2 Gate valves shutting flaps
    - 4.5.3 Aeration and ventilation valves
    - 4.5.4 Throttles
    - 4.5.5 gas control valves
    - 4.5.6 odour filters
    - 4.5.7 Odour stoppers
    - 4.5.8 Heating oil barriers
    - 4.5.9 Static mixers and injectors
    - 4.5.10 Test seals
    - 4.5.11 Regulating valves
    - 4.5.12 Backflow stoppers, backflow flaps
    - 4.5.13 Valves
    - 4.5.14 Heat exchangers
  - 4.6 Shafts, special structures
  - 4.7 Pressure and vacuum drainage systems
  - 4.8 stormwater
- 5 Pumps stations, lifting systems
- 6 Wastewater treatment
- 7 Sludge treatment and disposal
- 8 Water conditioning
- 9 Instrumentation, control, automation and test equipment
- 10 Actuators, motors
- 11 Treatment of wastewater from industry and commerce
- 12 Waste industry/disposal technology
- 13 Operation, maintenance, repair
- 14 Service firms
- 15 Advertising agents
- 16 Specialist literature
- 17 Software
- 18 Education
- 19 Water engineering
- 20 Hydro-electric power
- 21 Maintenance of water bodies
- 22 Hydrology

DWA Industry Guide Watermanagement, Wastewater-Waste

companies in category "4.5.11 Regulating valves"

ABIONIK Group GmbH

10117 Berlin

32257 Bünde

FRANZ DÜRHOLDT GmbH & Co. KG

42371 Wuppertal

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Phone: +49 2242 872 304

E-Mail: simon@dwa.de

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