Exhaust Fan Silencer Installation

Where vertical applications are required aerodynamically enhanced acoustic plenums can be provided.

Exhaust fan silencer installation.

Replace windband of fan with silencer. Noise levels can be high and contain low frequency content. The vibration of the fan amplifies even more at this kind of joints to overcome the issue use a clamp as a joint media in between the fan and filter silencers. Duct clampsthe joint between the inline fan and the adjacent filter or duct silencer.

Two silencers can be used together in installations where noise reduction is critical. 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. Exhaust silencers have mounting flanges to suit standard fan bolt patterns for easy installation.

Discharge silencers for industrial fans are often required to accommodate very high volumetric flow rates cfm at high temperatures and velocities. Fantech ld silencers are typically used for kitchen exhaust systems. 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.

Installation dos and donts 3 dr ref qxd 6 11 2015 3 58 pm page 18. Flexible seals between the silencer and fan can be eliminated by mounting the silencer on support legs and vibration isolation pads so that the.