Table of contents
Origins and dangers of relaxation noise
Expansion noise is caused by a combination of physical phenomena:
-
Fluid flow through a restricted orifice (valve)
-
Rapid expansion caused by high pressure differential
-
Supersonic jet creating extreme turbulence
This noise is impulsive, difficult to predict, and can have an impact on :
-
Employee hearing health
-
Neighboring ICPE industrial sites
-
Durability of equipment exposed to mechanical vibrations and pulsations
Atmospheric vent silencers the acoustic solution from Groupe BOËT
To meet these challenges, the BOËT Group has developed high-performance, robust venting silencers, designed for noise reduction adapted to each industrial configuration.
Two stages of acoustic treatment :
1. Expansion stage
-
Regulates pressure and reduces turbulence
-
Allows progressive fluid release
-
Reduces noise levels at source
2. Dissipative stage
-
Composed of specific sound-absorbing materials
-
Absorbs high and medium frequencies
-
Transforms noise into heat through molecular friction
These industrial silencers can be integrated into purge, valve or booster lines, and can be sized for compressors, motors, or any process with high noise emissions.
Industrial applications concerned
Venting silencers are used in many sectors:
-
Nuclear, petrochemical, pharmaceutical and food industries
-
Wastewater treatment plants, pneumatic conveying networks
-
Noisy industrial machinery and pressure equipment
-
ICPE (Installations Classées pour la Protection de l’Environnement) sites
They are particularly suitable for environmental noise reduction, acoustic protection and acoustic safety in industry.
Why invest in an acoustic silencer?
✅ Protecting operators from noise pollution
✅ Comply with noise and ICPE regulations
✅ Limit the risk of conflicts with local residents
✅ Protect equipment from mechanical fatigue (vibrations, pulsations)
✅ Improving industrial building acoustics and industrial process sound comfort
The BOËT Group’s expertise in industrial acoustics
The BOËT Group offers unique expertise, based on over 60 years’ experience in industrial acoustic protection.
🔹 Advanced industrial acoustic studies
🔹 Acoustic simulation, modal analysis, vibration study, seismic study equipment
🔹 Custom acoustic sizing
🔹 Manufacture of acoustic enclosures, acoustic doors, acoustic grilles, acoustic panels
Each project benefits from full support, from the initial audit to ISO 9001 acoustic certification.
Conclusion and call to action
Uncontrolled expansion noise can compromise the safety, compliance and performance of your installations. When you choose custom silencers from the BOËT Group, you’re investing in a reliable, high-performance and durable industrial acoustic solution.
📩 Would you like to find out more or get a customized quote?
👉 Contact the Groupe BOËT experts now via our contact form.
