Noise levels can be high and contain low frequency content.
Exhaust fan silencer installation.
Where vertical applications are required aerodynamically enhanced acoustic plenums can be provided.
Installation dos and donts 3 dr ref qxd 6 11 2015 3 58 pm page 18.
Discharge silencers for industrial fans are often required to accommodate very high volumetric flow rates cfm at high temperatures and velocities.
Exhaust silencers have mounting flanges to suit standard fan bolt patterns for easy installation.
Two silencers can be used together in installations where noise reduction is critical.
Duct clampsthe joint between the inline fan and the adjacent filter or duct silencer.
Direct the duct opening away from noise sensitive areas.
Fantech ld silencers are typically used for kitchen exhaust systems.
An axial fan silencer is available to fit any fan size with construction materials suitable towards a system type a fan size and a higher velocity of a fan type.
When attached to an inline or remote fan the ld silencer dramatically reduces the sound traveling through the duct.
Blade passing frequency is often the defining noise characteristic when designing an exhaust silencer.
An excellent way to reduce the amount of noise is to use a fan speed controller.
The available types of axial fan silencers include media filled with film liner dissipative media filled and no media designs.
Change to an inline fan running parallel to the roof and place a rectangular silencer on the outdoor side.