Tuned Dissipative and Reactive Silencers

Acoustic, Noise and Vibration
Industrial Silencers
Absorptive Silencers
Tuned Dissipative and Reactive Silencers
Cleanable Silencers
Industrial Intake Silencers
Jet Engine Test Cell Intake Silencers
Gas Turbine Intake Silencers
Compressor Intake Silencers
Industrial Fan Intake Silencers
Industrial Exhaust Silencers
Jet Engine Test Cell Exhaust Silencers
Gas Turbine Exhaust Silencers
Steam and Gas Vent Silencers
Compressor Exhaust Silencers
Industrial Fan Exhaust Silencers
Centrifugal Fan Silencers
Axial Fan Silencers
Jet Fan Silencers
Commercial Ventilation Silencers
HVAC Silencers
Cross Talk Silencers
Silencer Weather Hoods
Reactive Mufflers
Resonator Mufflers
Reactive / Resonance Mufflers
Noise Control Enclosures
Acoustic Rooms and Buildings (Type E1)
Barrier Walls and Partial Enclosures (Type E2)
Small Equipment Acoustic Enclosures (Type E3)
Close Fitting Acoustic Enclosures (Type E4)
Acoustic Blankets and Acoustic Pipe Cladding (Type E5)
Noise Barrier
Noise Barrier Walls
Noise Barrier Panels
Noise Absorption and Reverberation Control
Noise Absorption Baffles
Noise Absorption Panels
Acoustic Doors
Acoustic Fire Rated and Blast Resistant Doors
Horizontal Sliding Doors
Swing Doors
Commercial Acoustic Doors
Acoustic Windows
Fire Rated and Bullet Resistant Windows
Acoustic Louvers
Acoustic Cable Boxes
Acoustic Blankets and Acoustic Pipe Cladding
Anechoic and Semi Anechoic chambers
Acoustic Turning Vanes
Aerodynamic Improvement Products
Flow Mixers
Flow Diffusers
Flow Ejectors
Flow Straighteners and Flow Conditioners
Augmenter Tubes
Turning Vanes
Dispersion and Pollution Control Products
Advanced Dilution Nozzles
Exhaust Stacks
Tuned Dissipative Reactive Silencer Fan Tonal Noise Control Helmholtz-resonators

Tuned Dissipative Silencers, also known as Reactive Silencers are used for applications where air flow contains particulates (such as dust, cement, oil, ash, soot, etc.) that would quickly clog and degrade performance of absorptive silencer baffles.

VG Engineering offer a range of custom designed tuned dissipative, reactive and pack-less silencers also known as no-media, no-fill or ACFI silencers.

Silencers are constructed to form tuned cavities based on a combination of lambda/4 and Helmholtz-resonator principles to attenuate unwanted sound. Cavity dimensions are specifically designed to account  the rotating equipment tonal frequency. Two stage silencers can be produced to account for two separate tonal frequencies. This type of silencer design provides a low pressure drop increase when added to a system.

This type of silencer design is best suited to narrow low frequency, pure tone sound normally produced by constant speed machinery such as fans.

As required access points can be provided to enable periodic cleaning of the silencer.