Silencers

Silencers are used to reduce noise associated with internal combustion engine exhausts, high pressure gas or steam vents, compressors and fans. They attenuate and/or absorb air-born sound waves propagated in a flowing medium. These examples lead to the conclusion that a silencer allows the passage of fluid while at the same time restricting the free passage of sound. They are normally custom-designed equipment.

Advantages
  • Applicable when access to the interior of a noise containing enclosure is required
  • Low maintenance cost
  • No limit of operating pressure
  • No limit of operating temperature
  • No moving parts
Applications
  • Boiler safety valve
  • Gas vent
  • Safety valve
  • Start-up ejector
  • Steam turbine vent
Applicable Codes and Standards:
  • ASME Sec. VIII - div. 1
  • ASTM E477
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