Flanking sound transmission via ventilation ducts and shafts

Acoustics

Optimum Sound Insulation for Ventilation Systems: Your Solution for a Quieter Environment

Our test facility for determining the shaft sound level difference of ventilation systems provides a detailed analysis of multi-floor air ducting systems. In accordance with DIN 52210-6:2013, sound transmissions from ventilation ducts, exhaust air systems or individual components such as shaft branches can be measured. The test setup simulates realistic conditions with a variable duct system and separate duct branches for sending and receiving rooms. Strategically placed microphones at important points record the sound levels, delivering precise results to optimize ventilation systems. With a sound level difference of at least 55 dB, our test facility meets the highest standards for sound insulation analyses.

By partnering with the experts at the Fraunhofer IBP, you benefit from state-of-the-art measurement technology and decades of experience of the Acoustics Department. Our tests reveal weak points in your ventilation systems, allowing you to implement targeted improvements. This helps enhance the efficiency and quality of your products while meeting the highest acoustic standards – a decisive competitive advantage and a guarantee for customer satisfaction.

How can we assist you? Learn more about our range of services or send us an e-mail.

 

Measurement Normalized flanking level difference (German “Schachtpegeldifferenz”)
Standard DIN 52210
Measurement object Ventilation ducts and shafts, exhaust systems, components of ventilation systems


Technical data

Duct length Approx. 690 cm
Distance of the shaft branches Approx. 275 cm
Branch length Approx. 50 cm
Size of mounting place Variable cross-section of ducts and shafts


Special feature

Max. sound reduction (related to the size of test sample) Dw ≥ 55 dB

 

More information

  • Circumferential bracket to support the separating floor
  • Variable installation of duct and shaft systems
ventilation duct with floor branches
© Fraunhofer IBP
Exemplary representation of the ventilation duct with floor branches.
Shaft opening in the receiving room without exhaust air element
© Fraunhofer IBP
Exemplary presentation of the shaft opening in the receiving room without exhaust air element.