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Wind power

Pump solutions for cooling circuits in wind turbines

By the wind power market segment, HERMETIC refers in particular to applications for cooling inverters, transformers and other power electronics in wind turbines. The waste heat generated in this process must be dissipated continuously and reliably to ensure high plant availability and a long service life for the components.

Due to limited installation space and labour-intensive maintenance operations – particularly offshore – there is a demand for compact, durable and low-maintenance pump solutions. HERMETIC supports operators and system integrators with hermetically sealed pumps for closed cooling circuits based on water-glycol mixtures or desalinated water.

Offshore wind farm with rows of large white wind turbines standing in calm blue ocean water under a hazy sky.

Typical areas of application

Inverter cooling
in onshore wind turbines

Cooling of inverters and power electronics
in offshore wind turbines

Cooling
of transformers and transistors on offshore platforms

Closed cooling circuits
in refrigeration units and cooling systems 

Media in action

Water-glycol mixtures

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Desalinated water

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HERMETIC Solutions and Benefits

Green centrifugal pump with flanged inlet, discharge outlet, and mounting base for wind energy applications.

LC split-case motor pumps

  • Specially developed for cooling inverters in wind turbines
  • Hermetically sealed system with no risk of leakage
  • Compact and lightweight design for limited installation space
  • Long, maintenance-free service life with an MTBF of over 130,000 hours
  • Suitable for water-glycol mixtures in closed cooling circuits
  • Particularly advantageous for hard-to-access onshore and offshore applications 
Green centrifugal pump with integrated motor, flange connections and mounting base for wind energy applications

CN / CNF canned motor pumps

  • Suitable for other cooling applications in wind power and energy-related infrastructure
  • Robust, hermetically sealed pump technology for closed cooling circuits
  • Reliable continuous operation for transformers, power electronics and other electrical assemblies
  • Minimisation of environmental and plant risks through leak-free operation
  • High operational reliability and availability for demanding cooling tasks 

Customised solutions for wind turbine cooling circuits

Advantages

  • Adaptation to the specific requirements of onshore and offshore installations
  • Support for space-constrained installation scenarios and bespoke interfaces
  • Designed for high reliability in hard-to-reach installation locations
  • Cost-effective solutions with attractive life-cycle costs
  • Contributes to long service intervals and high plant availability 

Are you looking for a reliable pumping solution for wind turbines?

Our experts can assist you in selecting hermetically sealed pumps for cooling circuits using water-glycol mixtures or desalinated water in onshore and offshore applications.