Silencers


Silencers control airborne noise in ducts and openings in acoustic enclosures.

Reactive Silencers

Reactive Silencers (with Suit Trap & Spark Arrestor) silencers are used to suppress flow induced noise which is being propagated with the media flow. Our knowledge of sound generation , propagation and its effect on ambience from mechanical equipment keeps us in good position to diagnose and offer solution to noise related problem. Reactive Silencers are generally used to reduce low frequency noise which are very common in low speed equipments such as, low speed diesel engine, vacuum pump and sometimes twin lobe blowers. In reactive silencers no absorptive material is used. The low frequency noise is nullified by reaction by the process gas inside the silencer. These are generally resonated type or mufti-chamber construction or a combination of both. The general limitations of reactive types is reasonably high pressure drop across the silencer and its unpredictable performance for high frequency noise reduction. We also offer a combination of reactive and absorptive silencers depending on the noise generated to achieve the desired noise level performance.

Features:

  • Easy installation
  • Low maintenance
  • Sturdy construction

Specifications:

  • Sizes: 1 NB to 36 NB
  • Temperature: -50 to 300°C

Absorptive Industrial Silencers

The Absorptive Industrial Silencers is the classic dissipative design, obtaining its noise control properties from the basic fact that noise energy is effectively “absorbed” by various types of fibrous packing materials. As sound waves pass through the spaces between the tightly packed, small-diameter fibers of the absorptive material, the resulting viscous friction dissipates the sound energy as small amounts of heat. Absorptive silencers are very effective on high noise frequencies (500-8,000 Hz). Consequently, absorptive silencers generally employ a “straight-through” or similar internal designs which cause minimal air flow restriction.

Features:

  • Fan size
  • Horse power
  • Air flow type
  • Number of blades
  • Static pressure
  • Rotational speed etc