DSTI's success in providing fluid transfer solutions is based on a wide range of proven experience with rotary sealing technology, continual design innovation, and a priority for constant communication with its customers to ensure their project's success.

DSTI's long life rotary union design provides reliable hydraulic power transfer for the most demanding environments.

Fluid Rotary Unions for Wind Turbines

Rotating Union Solutions for Hydraulic Blade Pitch Systems

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Today's leading wind turbine manufacturers demand reliable hydraulic blade pitch control systems. DSTI's fluid rotary unions provide dependable supply and return hydraulic power to the blade actuators, operating continuously in the toughest environments and conditions.


With over 2,000 blade pitch control rotary unions in service, DSTI's field-proven designs deliver the highest performance both onshore and offshore.

DSTI's fluid rotary unions can also be integrated with electrical slip rings to provide positioning sensor data and fiber optics.


Blade Pitch Rotary Union Features:

  • High Pressure, Multiple Passage Designs
  • Long Life, Hydrodynamic Seal Technology
  • Low Rotational Torque, Ideal for Continuous Duty
  • Integrated Mounting & Electrical Slip Ring Options
  • Material Options Including Specialized Stainless Steel for Offshore Environments
  • Specialized Designs for Direct Integration into Customer Equipment


For more information on rotary union solutions
for wind turbine hydraulic blade pitch control, please Contact DSTI



{ See Also Alternative Energy Rotary Unions & Swivel Joints }


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