Inlet Vane Controls

Highly efficient volume flow control for industrial centrifugal fans

SIEMPELKAMP Inlet Vane Controls

Inlet vane controls from Siempelkamp Industrial Fans represent a technologically advanced solution for the precise and energy-optimized control of air and gas flows. Installed directly in the fan’s inlet area, these components enable a highly efficient adaptation of plant performance to fluctuating process conditions. Quality Made in Germany guarantees a robust construction and durable mechanics that offer maximum reliability even under the most demanding continuous industrial loads.

The functionality of an inlet vane control is based on generating a targeted swirl in the direction of rotation of the fan impeller. By adjusting the fanned-out arrangement of the vanes, the characteristic curve of the centrifugal fan is actively influenced. Compared to simple throttling by conventional dampers, this method offers significant aerodynamic advantages: pressure loss is minimized, and the power consumption of the drive motor in partial load operation is significantly reduced. This leads to a considerable increase in the overall efficiency of the plant and sustainably reduces operating costs.

The mechanical design of the inlet vane controls is engineered for maximum stability and precision. The adjustment of the vanes is synchronized via a central adjustment mechanism that can be controlled manually, pneumatically, or electrically, depending on the requirement. Thanks to individual design, the inlet vane controls can be precisely matched to the dimensions and performance data of the respective fan. They are suitable both for the initial equipment of new plants and for the energy-efficient modernization (retrofit) of existing systems to bring their efficiency up to the latest state of the art.

As an integral component of the full-service solutions, every inlet vane control is developed taking into account the entire plant periphery. The seamless integration with Industrial Fans, the coordination with downstream Industrial Dampers & Slide Gates, as well as the combination with Industrial Silencers and Industrial Insulation ensure a fluidically harmonized overall system. In conjunction with engineering services such as CFD flow simulations, it is ensured already in the planning phase that the control reacts optimally to the specific process parameters. The accompanying Repair, Service & Maintenance area also ensures the long-term functionality and precision of the control mechanics worldwide.

Technical highlights at a glance:

  • Operating Principle: Energy-optimized volume flow control by generating pre-swirl.
  • Efficiency: Significant energy savings in partial load operation compared to conventional throttling.
  • Design: Robust, fanned-out vane construction for maximum mechanical durability.
  • Actuation Technology: Flexibly controllable (electric, pneumatic, or manual).
  • Application Area: Ideal for processes with frequently fluctuating load requirements.
  • Integration: Perfectly matched to centrifugal fans up to a diameter of 4,000 mm.
  • Advantages: Low-wear mechanics, precise characteristic curve adaptation, and reduction of life cycle costs.

Frequently Asked Questions

We offer vibration measurements, characteristic curve measurements, bearing and sound analyses. This allows us to ensure optimal operational readiness of the products.

We manufacture products tailored to the individual requirements and specifications of our customers. Please feel free to contact us and let our experienced team advise you on finding the right, customized solution for you.

Yes, for potentially explosive atmospheres we manufacture radial fans that comply with ATEX directives and therefore meet all necessary safety requirements.

Yes, Siempelkamp Industrial Fans offers a complete service package for industrial fans and dampers from all manufacturers. This includes, for example, the inspection and repair of fans and system components, as well as troubleshooting. Our competent and experienced service specialists are deployed worldwide and will address your request as quickly as possible.

Your contact persons

Ralf Kallen
Sales of industrial flaps

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Let one of our experts provide you with a free, no-obligation consultation regarding your requirements. Rely on quality made in Germany and personalized support. Our team looks forward to answering your questions and working with you to plan the optimal component for your process.

References & Project Examples

Industrie-Ventilatoren

Fan for a strip galvanizing plant