How noisy is the air compressor?

The noise level of the air compressor is affected by many factors, including the type of air compressor, power, operating status, and whether noise reduction measures are taken. The following is an overview of the noise level of air compressors based on publicly released information:

1. general air compressor noise level

• the noise level of the general air compressor piston machine is usually above 75 decibels.
• The noise value of the oil-free air compressor is about 70-82 decibels.
• Single screw air compressor because of the force balance, vibration is small, the noise is relatively low, generally between 60-68 decibels.
• The noise of the double screw air compressor is generally between 64-78 decibels.
• The most energy-saving permanent magnet frequency conversion series air compressor noise level is low, can reach 60-63 decibels, basically will not affect the normal work and rest.

2. the noise level of the silent air compressor

• the silent air compressor is designed for a low-noise environment, and its noise level is between 40-60 decibels.
• The noise of the oil silent air compressor is usually around 40 decibels.
• The noise of the oil-free silent air compressor is about 60 decibels.

Relevant national standards and regulations in 3.

• According to the "the People's Republic of China Environmental Noise Pollution Prevention Law" and related standards, there are certain restrictions on industrial equipment noise, including air compressor noise. The daytime noise shall not exceed 70 dB (A) and the nighttime noise shall not exceed 55 dB (A). These standards are applicable to newly built, expanded and rebuilt air compressor stations.
• For the existing air compressor station, if the noise exceeds the above standards, noise reduction measures should be taken.

4. noise reduction measures

in order to reduce the noise level of the air compressor, the following measures can be taken:

• install the muffler: install the muffler at the air inlet and exhaust port of the air compressor to reduce the noise transmission.
• Use sound insulation cover or sound insulation room: install sound insulation cover or sound insulation room for air compressor to isolate the propagation path of noise.
• Vibration control: use vibration isolator, vibration isolation connector and other vibration control equipment to reduce the noise generated by the vibration of the air compressor.
• Pipeline noise control: add damping materials, orifice plates, etc. in the pipeline system to reduce the transmission of pipeline vibration and noise.

In summary, the noise level of the air compressor varies due to many factors, but the general air compressor noise level is higher, above 70 decibels. For application scenarios that require a low-noise environment, you can choose to mute the air compressor or take noise reduction measures to reduce the noise level. At the same time, the relevant national standards and regulations should be observed to ensure that the noise of the air compressor is within the controllable range.