
Silencers
Silencers for Industrial Processes and Ventilation
HIAK has industry-leading experience in industrial process silencers. We customize the silencers based on the customer’s requirements for noise abatement, pressure drop, materials, etc., and we provide a performance guarantee.
We design all silencers according to customer requirements. Our unique rod silencer is a favorable choice in many installations. It has many advantageous features, such as a compact and lightweight design, good thermal and flow properties, and the option to replace or clean the damping bodies among others.
The typical applications of our industrial silencers are:
- When there’s a need for sound attenuation in a Tunnel and Mining ventilation project.
- For sound attenuation of combustion air or exhaust gases from gas turbines and engines powered by natural gas or hydrogen. Our dampers are tailored for the rough conditions of these environments.
- When there’s a need for sound attenuation for evacuation of process air from heat recovery, ventilation, etc., in paper or pulp mills, energy plants, mines, and process industries.
- Flue gas silencer for the evacuation of flue gases from flue gas fans. We optimize the dampers for low-pressure drop to maintain performance. Since many of the sound attenuators are cleanable, it reduces the risk of acoustic performance deterioration over time.


Our Silencers

Inlet Silencer
Silencer for air intake to gas turbines Combustion air for gas turbines or engines requires high acoustic performance and minimum pressure drop.
Read More
Combustion air for gas turbines and engines requires high acoustic performance and minimal pressure drop. Our silencers are tailored for rough conditions and are designed so that no parts or fibers can harm the turbine.

Exhaust silencers
Built for tough conditions with high temperatures, turbulent flows, and pressure variations.
Read More
The environments where gas turbines and engines are used often consist of rough conditions consisting of high temperatures and turbulent flow with significant pressure variations. Our dampers are tailored for these conditions, and we have references from virtually every possible installation environment all over the world.
Silencers and acoustic systems for gas turbines.
We deliver exhaust sound attenuators, inlet sound attenuators, and sound enclosures around the entire gas turbine and can also provide additional non-acoustically related subsystems, such as filters, air intakes, and plenums. The products are available in various materials tailored to meet each customer’s unique needs.


Ventilation silencers
Silencing of process air from heat recovery and ventilation in factories and mines.
Read More
Process air from heat recovery, ventilation, etc. are typical silencer installations at paper or pulp mills, energy plants, mines, and process industries. We have the products to solve the commitment in the noise abatement and include other technical challenges in our customers’ projects. The commitment can also include assembling our own parts, as well as dismantling the older system.


Flue gas silencers
Damper for reducing noise from flue gas fans. Optimized for low pressure drop to maintain performance.
Read More
These silencers are used to silence flue gases from flue gas fans. The dampers are optimized for low-pressure drop to maintain performance. The silencers can be delivered cleanable, which reduces the risk of performance deterioration over time. We also have silencers to be built in stacks. The delivered products are always designed according to the specific requirements. HIAK can solve extremely tough requirements regarding acoustics, accessibility, quality, and pressure drop.




Silencers for tunnel ventilation.
Customized silencers for ventilation in tunnels and mines.
Read More
Tunnels need ventilation both during the construction process, as well as, after when they are in use. The tunnel entrances are often located in densely populated areas, which places high demands on sound attenuation from fans. Ventilation for mining with large fans also needs silencers.
We customize silencers to meet all conceivable requirements and are suitable for all types of fans.

Offshore silencers
Exhaust silencer for gas turbines and heat recovery systems on oil & gas platforms.
Read More
Our offshore silencers are used for exhaust gases from gas turbines and heat recovery units on oil & gas platforms at sea. The environments around gas turbines and heat recovery units are characterized by high temperatures and turbulent flow with significant pressure variations, and the silencers must be built to endure these conditions. Additionally, the turbines may be located right next to offices and residences, making the demands on these sound attenuators very high. They are tailored for harsh conditions and designed to meet the necessary high requirements. We have the references to showcase our expertise from many installation environments, from the Persian Gulf to the North Sea with NORSOK requirements, etc.



Would you like to know more?
Lennart Eriksson
Sales
46 (0)225 59 56 30

Anders Granberg
Sales
+46 (0)225 59 56 59
