Kelag Systems AG ¦ Swiss system solutions in welding technology

Kelag Systems AG develops complete systems from one source, arranges for efficient material procurement, takes on overall manufacturing in its own machine shops, offers assembly in-house on its customer’s premises or on-site, carries out maintenance work, and whenever necessary, contributes full service including engineering.

Since the time of its establishment, which included the assembly of industrial plants, Kelag Systems AG has been continually expanding and advancing its core competence. Today, its services range from complete system solutions for pipeline construction for industrial and infrastructural purposes, hydraulic steel construction, pressure pipelines and armouring, as well as plant and apparatus construction.

As a leading Swiss welding specialist and expert in the assembly of complex plants and systems, all our solutions are customised to meet our clients’ specific requirements and oriented towards meeting top standards in all respects, as well as conformity with all legal requirements.

Our portfolio ¦ Our expertise for the success of your projects

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Engineering

  • Design planning (basic engineering)
  • Approval planning
  • Execution planning (detail engineering)
  • Dimensioning and detailed design
  • FE analysis and modelling
  • etc.
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Shop manufacturing

  • Cutting and welding edge preparation
  • Tacking and welding work
  • CNC pipe bending work
  • Surface treatment
  • Mechanical treatment
  • etc.
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Services

  • Temporary recruitment
  • Contract welding
  • Welding repair
  • Retrofitting of existing plants
  • All-round services for your project
  • etc.
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Pipework construction for industrial and infrastructural purposes

  • Turbine pipework
  • Oil and fuel pipelines
  • Industrial pipework
  • District steam and district heating pipelines
  • Natural gas (high-pressure) pipelines
  • etc.
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Hydraulic steel construction and armouring

  • Sluices and fish passes
  • Stoplog systems
  • Dam and weir structures
  • Wicket gates and screen systems
  • Grit chambers
  • etc.
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Prefabricated units and (special) plant construction

  • Fuel distribution systems
  • Lubricating systems
  • Gas shut-off systems
  • Heating and cooling systems
  • Special pipe-in-pipe systems
  • etc.
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Vessel and apparatus construction

  • Reactors
  • Storage tanks
  • Pressure vessels
  • Columns
  • Heat exchangers
  • etc.
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Pressure pipeline construction

  • Pressure pipelines
  • Y-pipes (distribution pipes)
  • Expansions
  • Manholes
  • Pipe elbows
  • etc.
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On-site assembly

  • Assembly work of any kind
  • On-site quality assurance
  • Commissioning
  • Assembly documentation
  • Provision of supervisor services
  • etc.

Overview of reference projects

COMPRESSOR SKID; WINTERTHUR, SWITZERLAND

Plant construction

PRESSURE PIPELINE RENOVATION; TSCHAR, SWITZERLAND

Pressure pipeline construction

DISTRICT HEATING SYSTEM EXPANSION; BUCHS, SWITZERLAND

Pipeline construction

GAS TURBINE INJECTION SYSTEM; BIRR, SWITZERLAND

Special plant construction

LUBE OIL SKIDS; KUALA LUMPUR, MALAYSIA

Plant construction

NEW WICKET GATE CONSTRUCTION; VIAMALA, SWITZERLAND

Hydraulic steel construction

CHEMICAL REACTOR; DOMAT-EMS, SWITZERLAND

Apparatus construction

DIVING CHAMBER; LÜBECK, GERMANY

Vessel construction

WATER SUPPLY PUMPING STATION; BUCHS/GRABS, SWITZERLAND

Pipeline construction

PRESSURE PIPELINE RENOVATION; VADUZ, LIECHTENSTEIN

Pressure pipeline construction

FLUE GAS DUCTING RENOVATION; ST. GALLEN, SWITZERLAND

Pipeline construction

NEW PRESSURE PIPELINE CONSTRUCTION; REALP, SWITZERLAND

Pressure pipeline construction

Your project enquiry

Please use the link below as a first step for sending us relevant information about your project and what you have planned.

We will then study your documents and, as a next step, get in touch with you immediately in order to discuss any further details in a personal talk and examine the situation on the spot. The third step will be to draw up and send you an offer in line with your specific requirements.

We look forward to receiving your enquiry!