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Duct silencer for supply ventilation noise countermeasures ML type-3ML
Duct silencer for supply ventilation noise countermeasures ML type-Sasakura Co., Ltd.

Duct silencer for supply ventilation noise countermeasures ML type
Sasakura Co., Ltd.


About This Product

■Suitable for large air volume with low pressure loss

By using a straight sound-absorbing splitter, the pressure loss is extremely small, so it is usually possible to select a silencer that matches the duct dimensions within the allowable pressure loss.

■Guarantees excellent sound reduction performance

Sound reduction performance has been confirmed as a dynamic insertion loss value through acoustic wind tunnel tests and the large-scale Sasakura Acoustics Laboratory, which consists of two reverberation chambers, and we guarantee excellent sound reduction performance. All functions of the Sasakura Duct Silencer have been measured at the Sasakura Acoustic Laboratory to ensure the following acoustic performance and special airflow.

■Self noise value

This is the secondary sound (wind noise) generated within the silencer due to airflow, and is expressed in sound power level.

■Dynamic insertion loss value

It is an accurate method of expressing sound reduction performance when airflow is involved, and it shows how much the sound pressure level at the sound receiving point before installing the silencer is reduced by installing the silencer.

■Pressure loss value

It represents the static pressure difference before and after the silencer due to air flow. Due to its low pressure loss, it is ideal as a silencer for ventilation equipment with low static pressure, such as pressurized ventilation fans. It is also suitable for use at high flow rates.

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    Duct silencer for supply ventilation noise countermeasures ML type

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4 Models of Duct silencer for supply ventilation noise countermeasures ML type

Click on the part number for more information about each product

Image Part Number Price (excluding tax) Sound reduction performance Silencer inlet flow velocity (m/s) Sound reduction performance Octave band center frequency Pressure drop (Pa) Silencer inlet flow rate PWL correction value based on inlet area Silencer inlet area Self noise level Octave band center frequency
Duct silencer for supply ventilation noise countermeasures ML type-Part Number-3ML

3ML

Available upon quote

-15~+15

63Hz 2~3dB, 125Hz 4~5dB, 250Hz 9~11dB, 500Hz 16~17dB, 1,000Hz 17~19dB, 2,000Hz 11~13dB, etc.

4m/s 8, 5m/s 12, 6m/s 17, 7m/s 23, 8m/s 30, 9m/s 38, 10m/s 47, 11m/s 57, etc.

0.125m2 -9dB, 0.25m2 -6dB, 0.5m2 -3, 1m2 0, 2m2 +3, 4m2 +6, 8m2 +9, 16m2 +12, 32m2 +15

63Hz 53~76dB, 125Hz 48~66dB, 250Hz 42~64dB, 500Hz 39~68dB, 1,000Hz 38~65dB, 2,000Hz 41~67dB, etc.

Duct silencer for supply ventilation noise countermeasures ML type-Part Number-5ML

5ML

Available upon quote

-15~+15

63Hz 2~4dB, 125Hz 7~8dB, 250Hz 14~16B, 500Hz 27~28dB, 1,000Hz 29~32dB, 2,000Hz 18~22dB, etc.

4m/s 9, 5m/s 14, 6m/s 20, 7m/s 28, 8m/s 36, 9m/s 45, 10m/s 56, 11m/s 68, etc.

0.125m2 -9dB, 0.25m2 -6dB, 0.5m2 -3, 1m2 0, 2m2 +3, 4m2 +6, 8m2 +9, 16m2 +12, 32m2 +15

63Hz 53~76dB, 125Hz 48~66dB, 250Hz 42~64dB, 500Hz 39~68dB, 1,000Hz 38~65dB, 2,000Hz 41~67dB, etc.

Duct silencer for supply ventilation noise countermeasures ML type-Part Number-7ML

7ML

Available upon quote

-15~+15

63Hz 4~5dB, 125Hz 11~13dB, 250Hz 19~21dB, 500Hz 35~38dB, 1,000Hz 37~41dB, 2,000Hz 23~29dB, etc.

4m/s 12, 5m/s 18, 6m/s 25, 7m/s 34, 8m/s 45, 9m/s 57, 10m/s 70, 11m/s 84, etc.

0.125m2 -9dB, 0.25m2 -6dB, 0.5m2 -3, 1m2 0, 2m2 +3, 4m2 +6, 8m2 +9, 16m2 +12, 32m2 +15

63Hz 53~76dB, 125Hz 48~66dB, 250Hz 42~64dB, 500Hz 39~68dB, 1,000Hz 38~65dB, 2,000Hz 41~67dB, etc.

Duct silencer for supply ventilation noise countermeasures ML type-Part Number-10ML

10ML

Available upon quote

-15~+15

63Hz 7~9dB, 125Hz 18~20dB, 250Hz 26~27dB, 500Hz 41~46dB, 1,000Hz 47~49dB, 2,000Hz 34~40dB, etc.

4m/s 14, 5m/s 22, 6m/s 32, 7m/s 43, 8m/s 56, 9m/s 71, 10m/s 87, 11m/s 106, etc.

0.125m2 -9dB, 0.25m2 -6dB, 0.5m2 -3, 1m2 0, 2m2 +3, 4m2 +6, 8m2 +9, 16m2 +12, 32m2 +15

63Hz 53~76dB, 125Hz 48~66dB, 250Hz 42~64dB, 500Hz 39~68dB, 1,000Hz 38~65dB, 2,000Hz 41~67dB, etc.

Click on the part number for more information about each product

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