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  2. Duct silencer for supply ventilation noise countermeasures LF type S type (Sasakura Co., Ltd.)
Duct silencer for supply ventilation noise countermeasures LF type S type-LF-3S
Duct silencer for supply ventilation noise countermeasures LF type S type-Sasakura Co., Ltd.

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

Sasakura Co., Ltd.'s Response Status

Response Rate

100.0%

Response Time

42.9hours

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. Improved acoustic performance in the low frequency range. It efficiently reduces the low frequency sound range, which tends to be a problem with general noise reduction measures.

  • Product

    Duct silencer for supply ventilation noise countermeasures LF type S type

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4 Models of Duct silencer for supply ventilation noise countermeasures LF type S 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 LF type S type-Part Number-LF-3S

LF-3S

Available upon quote

-6~+6

63Hz 8~9dB, 125Hz 12~14dB, 250Hz 22~24dB, 500Hz 26~27dB, 1,000Hz 25dB, 2,000Hz 19~21dB, etc.

1m/s 2, 2m/s 8, 3m/s 17, 4m/s 30, 5m/s 46, 6m/s 67, 7m/s 91, 8m/s 118, etc.

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

63Hz 41~55dB, 125Hz 38~52dB, 250Hz 41~55dB, 500Hz 39~53dB, 1,000Hz 41~54dB, 2,000Hz 45~58dB, etc.

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

LF-5S

Available upon quote

-6~+6

63Hz 12~16dB, 125Hz 18~21dB, 250Hz 30~35B, 500Hz 35~41dB, 1,000Hz 38~41dB, 2,000Hz 27~28dB, etc.

1m/s 2, 2m/s 8, 3m/s 18, 4m/s 32, 5m/s 50, 6m/s 71, 7m/s 97, 8m/s 127, etc.

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

63Hz 41~55dB, 125Hz 38~52dB, 250Hz 41~55dB, 500Hz 39~53dB, 1,000Hz 41~54dB, 2,000Hz 45~58dB, etc.

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

LF-7S

Available upon quote

-6~+6

63Hz 12~16dB, 125Hz 23~26dB, 250Hz 39~44dB, 500Hz 49~49dB, 1,000Hz 49~50dB, 2,000Hz 35~37dB, etc.

1m/s 3, 2m/s 9, 3m/s 19, 4m/s 33, 5m/s 52, 6m/s 75, 7m/s 102, 8m/s 132, etc.

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

63Hz 41~55dB, 125Hz 38~52dB, 250Hz 41~55dB, 500Hz 39~53dB, 1,000Hz 41~54dB, 2,000Hz 45~58dB, etc.

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

LF-10S

Available upon quote

-6~+6

63Hz 20~22dB, 125Hz 28~32dB, 250Hz 47~49dB, 500Hz 52~53dB, 1,000Hz 52~53dB, 2,000Hz 44~46dB, etc.

1m/s 3, 2m/s 10, 3m/s 22, 4m/s 38, 5m/s 59, 6m/s 85, 7m/s 116, 8m/s 151, etc.

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

63Hz 41~55dB, 125Hz 38~52dB, 250Hz 41~55dB, 500Hz 39~53dB, 1,000Hz 41~54dB, 2,000Hz 45~58dB, etc.

Click on the part number for more information about each product

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About Company Handling This Product

Sasakura Co., Ltd.

Response Rate

100.0%

Response Time

42.9hrs

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