The advantages of Alara-Lukagro silencers

  • For any situation
    From standard duct silencers for construction, to large vent silencers for the complex processing industry.
  • Based on knowledge
    Knowledge of sound, of advanced engineering methods and production options. This allows us to always offer you the most effective and efficient silencer.
  • We jointly reflect on your issue
    Do you have to cope with limited space, tight deadlines or strict safety requirements? We would be thrilled to take on the challenge with you.

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Splitter silencers

Splitter silencers

A splitter silencer consists of a damper casing that contains splitters. It can also be designed as a resonance silencer, to attenuate specific frequencies.

Contact us for more information or open the silencer selection tool to perform a quick calculation to select the right silencers for your project:

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coulissen geluiddemper
grote coulissen geluiddemper
coulissen demper

Cylindrical silencers

Cylindrical silencers

The way cylindrical silencers work is based on absorption, just like the splitter silencer. This silencer is often used between pipes. The cylindrical silencer can be designed with an absorbing core or with splitters.

Contact us for more information or open the silencer selection tool to easily select the right silencers for your project:

Contact us for more information

Open silencer selection tool


Vent silencers

Safety vents or valves release steam or gas under high pressure, which causes a great deal of noise. In a vent silencer the pressure is gradually reduced in several pressure stages, in which the frequency spectrum shifts. The residual noise is subsequently reduced in the absorption chamber.

The silencer can be designed as a combined transformer and absorption silencer for broadband attenuation.

Special designs, multiple inlets and outlets and horizontal and vertical assembly are possible. The vent silencer can be supplied with hoisting lugs, supports, a rain hood and all the necessary product documentation.

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afblaas geluiddemper
afblaas geluiddempers
kleine afblaas geluiddempers met transformatie

Flue and exhaust silencers

Flue and exhaust silencers are used to reduce noise produced by combustion engines and for heavy industrial applications such as flues for boiler installations.


  • Sound attenuation up to Rw 50 dB
  • Gas speed up to 50 m/s with maximum counter pressure, temperatures up to 800°C
  • Flue and exhaust silencers can be designed as an absorption silencer for broadband attenuation.
  • To attenuate specific frequencies the flue and exhaust silencers can be designed as a resonance or combination silencer.
  • Designed as a quarter-wave attenuator (Helmholtz) for highly polluted gas flows.

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schoorsteen geluiddemper
uitlaatgassen geluiddemper

Pulsation silencers

Pulsation silencers (photo 1)

These are used in pressure pipes behind compressors, vacuum pumps and positive displacement blowers. Resonance chambers in the silencers ensure that the pulsation’s main interference frequencies are attenuated. An absorption section ensures broadband attenuation of the noise.

Hydraulic pulsation silencer (photo 2)

This silencer is for a different application, directly behind a hydraulic pump, where there are always (minor) variations in the flow rate. The pulsations are converted into pressure variations in the pressure pipe. The pressure variations can produce powerful noise emissions, to which a hydraulic pulsation silencer is applied.

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pulsatie geluiddemper
hydrauliek pulsatie geluiddemper

Reference projects involving silencers

View more projects involving silencers

Want tailor-made advice for your project? We’d be delighted to sit around the table with you to discuss your needs!

“I’d be delighted to sit around the table with you to devise the optimal solution for your project. I have years of experience at Alara-Lukagro and consequently understand market demands. Are you faced with a challenge? If so, you’ve come to the right place!”

Michael Roode Account Manager +31 (0) 184 820 760
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