HUSH DUCT™
Ventilation Silencers



Product Data Section

Absorbers
Barriers
Composites
Damping & Diffusion
Electronic
Flow Control

Source/Airborne
Source/Structure
Path/Direct
Path/Indirect
Receiver

HVAC in-line circular model CM4 silencers with sound absorbing center bullets ready for shipment.

Industrial forced draft fan with model 3RL rectangular inlet silencer, support legs and transition.

• Predictable acoustic and aerodynamic (pressure loss) performance
• Source and path control
• Suitable for new and retrofit applications
• Available in round, rectangular, oval and custom configurations
• Durable galvanized steel construction (other materials also available)
• Special designs for hospital, pharmaceutical and food processing
• Standard lab tested designs available
• Can be customized with flanges, brackets, transitions, etc.
• Spot weld construction for low pressure applications and continuous weld construction for high pressure service over 15" w.g.

• Building ventilation systems
• Laboratory hood exhaust systems
• Process/industrial fans, blowers and compressors
• Dust collectors
• Incinerator systems
• Atmospheric vents
• Enclosure and mechanical space ventilation systems (louvers)
• Clean air emissions control systems
• Induced draft and forced draft fans
• Highway tunnel ventilation systems
• Glass tempering/quenching operations
• Fan powered VAV boxes
• Fan inlet box silencers
• Fan filter silencers