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Unit of Measure

Specifications

Length

N/A 55 in

Use for

N/A Woods Varofoil Fans

Casing Side

N/A 64 in

Inlet Diameter

N/A 57 in

Outlet Diameter

N/A 28.00 in

Maximum Air Flow

N/A 23000 ft³/min

Shape of Inlet/Outlet

N/A Round Inlet

Silencer Size Class

N/A A

Type

N/A Acoustical

Dynamic Insertion Loss

Dynamic Insertion Loss @ 63 Hertz (Hz), 1500 Feet per Minute (FPM)

N/A 2 dB

Dynamic Insertion Loss @ 125 Hertz (Hz), 1500 Feet per Minute (FPM)

N/A 6 dB

Dynamic Insertion Loss @ 250 Hertz (Hz), 1500 Feet per Minute (FPM)

N/A 12 dB

Dynamic Insertion Loss @ 500 Hertz (Hz), 1500 Feet per Minute (FPM)

N/A 21 dB

Dynamic Insertion Loss @ 1000 Hertz (Hz), 1500 Feet per Minute (FPM)

N/A 25 dB

Dynamic Insertion Loss @ 2000 Hertz (Hz), 1500 Feet per Minute (FPM)

N/A 25 dB

Dynamic Insertion Loss @ 4000 Hertz (Hz), 1500 Feet per Minute (FPM)

N/A 14 dB

Dynamic Insertion Loss @ 8000 Hertz (Hz), 1500 Feet per Minute (FPM)

N/A 11 dB

Note

Note

N/A For each 1500 FPM over 1500, add 1 dB per band.