
|Silencers Pressure Gauges
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What is the difference between ANA1, ANB1, and AN□02 series silencers?
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They each provide higher noise reduction than the standard product. Their individual characteristics are as follows.
ANA1 series: It features 40 dB (A) noise reduction, which is the highest of the 3 silencers.
ANB1 series: It features 38 dB(A) noise reduction, which is slightly lower than that of the ANA1 series, but the discharge flow rate is larger by 1.4 to 2.2 times. Compared with an ANA1 with the same male thread size, the external dimensions are also larger.
AN□02 series: It features 35 dB(A) noise reduction, and uses flame-resistant material (equivalent to UL-94 standard V-O) for the main body. Only 1/4, 3/8, and 1/2 port sizes are available.
(Reference 1) Standard AN series compact resin type silencer: 30 dB(A) noise reduction