SUC DNV Critical Spark Arresting Chamber Exhaust Silencers

25 to 32 dBA Noise Reduction

DNV Type Approved spark arresting silencer designed for equipment operating in environments containing potentially combustible materials. The silencer forces cyclonic action to separate particulates from exhaust. The collected particulates are removed via the spark clean-out. Providing an exceptional level of attenuation, it is designed for very quiet environments.

Typical Applications: Internal combustion engine exhausts, marine service, refineries/hazardous environments, and offshore drilling/production platforms


  • Advanced acoustical design
  • Heavy duty, all welded construction and long service life
  • Easily installed in any position
  • High heat silicone black finish
  • Connections: ANSI pattern flanged
  • Two chambers
  • Drain connections

Options / Accessories

  • Explosion relief cover
  • Flexible connectors
  • Companion flanges
  • Cleanout openings
  • Custom inlet/outlet size, location and multiple orientation types available
  • Horizontal or vertical support arrangements
  • Aluminized steel, Stainless Steel 304 or 316 construction available
  • Special paints and finishes available
  • Complete range of exhaust accessories


  • Complies with Det Norske Veritas and Germanischer Lloyd’s Rules for Classifi cation of Ships, DNV’s Offshore Standard DNV-OS-D101 “Marine and Machinery Systems and Equipment” NS-EN 1834-1

Attenuation Curves

To download the Maxim SUC spec page click here

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