Product Overview

Noise produced by HVAC systems can lead to complaints from building owners and occupants. Eliminate complaints by including SEMCO duct, plenum, and fan silencers in your next project design.

Engineered and independently tested for top quality and performance, SEMCO Silent Air sound solutions include:

Standard Duct Silencer

• Designed to reduce noise in specific octave bands or across a wide range of noise levels
• Include a variety of options:
  • Rectangular or round configuration, including straight-flow models
  • A wide range of performances and materials
  • For exterior or interior applications
• Are ideal for numerous applications: heating, ventilating, and air conditioning; custom air handling units, generator enclosures, exhaust stacks, manufacturing equipment, and almost any other situation where noise pollution is a concern

Media Free Silencer

• Provide broadband attenuation without the use of fiberfill media, eliminating the concern of fiber erosion or microbial growth in the air stream
• Are suitable for all sensitive applications in systems operating at higher velocities
• Ideal for sensitive applications requiring a contaminant-free environment: hospitals, pharmaceuticals, electronics and clean rooms

NOTE: SEMCO also offers media-free fume hood exhaust systems specifically designed to eliminate environmental dangers associated with chemical fume absorption.

Specialty Silencers

• Provide maximum performance for unique applications, such as maximum attenuation for projects with spatial limitations
• Include:
  • Return grille silencer: Designed for use between a return air stream and an occupied space; available in standard and nonstandard sizes to accommodate many applications
  • Discharge/intake silencers: Engineered to work with vane axial fans; can be sized to match an individual manufacturer

Key Features/Benefits

• Acoustic fiberglass fill
• Excellent attenuation across all octave bands
• Minimal pressure drop
• Low-frequency octave band models