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Bolted joints on applications in hydro energy related industries: All bolting tools and solutions

Hydropower: bolt connections and relating tension and torque tools

Hydropower is power derived from the energy of falling or running water. Hydroelectricity is also an often used term used to describe this kind of power generation.

For nearly all kinds of bolt connections in this industrial area ITH delivers tension and torque tools as well as corresponding hydraulic equipment or engineering (designing bolted joints).

Typical applications for bolting tools are in:

  • Water power stations
  • Pumped storage hydro power plants
  • Tidal power plants
  • Hydro turbines
  • Generators
  • Low-, mid- and high pressure pumps or pump stations
  • Turbines (ITH is the world market leader to tighten and loosen bolts of turbines)

Find below an overview of examples of all bolting tools and solutions for bolted joints on components in hydroenergy sector.

Contact us for more information or regarding technical questions regarding your individual bolted joint.

Bolted joints in hydroenergy: Examples of bolting tools and solutions

Application / Bolted joint

ITH bolting tools, solutions and equipment

Turbine bolt connections

Generator bolt connections

  • Hydraulic tensioning with ITH bolt tensioning cylinders type MS and type ES

Pump bolt connections

Pole bolt connection

Kaplan turbines (tube turbine)


All other bolting applications bigger than M16 (5/8'')

Browse our tension and torque tools overview to overview all solutions or contact us. We would be happy to give technical advise.

Bolting equipment for the Three Gorges Dam in China

One of the biggest ITH projects in hydroenergy was the delivery of bolting equipment for the biggest dam worldwide: The Three Gorges Dam on the Yangtze River in China. For this project ITH delivered:

  • The design of the bolt connections
  • bolts M 245 (104 '')
  • Large scale bolt tensioning cylinders type ES 160 (63'') and type ES 320 (126'')

ITH body bound fitted bolts M245 for hydroturbines

Contact your local person in charge

Contact ITH for a free consultation regarding bolting tools, fasteners or service in bolting technology

Use the ITH global network to find your local person in charge.

Objective technical advice

Being a whole system supplier we are not determined to one specific bolting method - Therefore we advise you objectively and offer the best technical and cost-effective solution.

Contact us for a free consultation

Contact us on any questions regarding your bolt connection or for any technical questions. We advise you free of charge and offer a free on-site inspection.


Tension and torque tools for hydroenergy: relating content

  • All types of Bolt Tensioning Cylinders at a glance: fundamental single- and multistage designs, segment cylinders and segment cylinder rings, foundation bolt tensioners and more.
  • Overview of all types of hydraulic torque wrenches, working due to the torque method or torque-angle method.
  • Electric, pneumatic and battery powered torque wrenches which operate due to the torque method respectively to the torque-angle method.

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