oil rotary union / multi-passage / for wind turbines / stainless steel
DSTI - Dynamic Sealing Technologies



  • Medium:

    for oil

  • Number of passages:


  • Applications:

    for wind turbines

  • Material:

    stainless steel


For dependable wind turbine blade pitch control systems, DSTI cannot be beaten. This company offers consumers fluid rotary systems which provide and return hydraulic power to blade actuators. This allows the wind turbines to continuously function despite harsh environmental conditions. DSTI currently has produced over 2,000 blade pitch controls systems that are in operation today. These device work in both offshore and onshore settings. The fluid rotary unions can be outfitted with electric slip rings, which allows fiber options to be integrated and positioning sensor data to be provided. These devices come in designs that are created with multiple passages and can be used in high pressure situations. Due to their hydrodynamic seal technology, these devices are quite long lived. Unceasing operation is made possible by the low rotational torque. Integrated mounting is another option. Stainless steel types can be used in offshore environments. However, if none of these rotary systems suit a customer's purpose DSTI will be glad to work with them in order to come up with a viable, customized alternative. Please contact our sales representative for more details.