What is the noise control method of electric valve?

Noise control method of electric valve:
　　

1. Use silencer
The muffler only needs to be installed directly downstream of the control valve, which can effectively reduce the noise of the control valve. However, when using the silencer, some problems are often encountered. First, for the silencer to be useful, a low flow rate is required. However, the low flow rate often makes the muffler seem of no practical value, especially in the large flow system. Secondly, the acoustic elements are often not compatible with the fluid medium. Third, the operating conditions may be severe.
　　

2. The label of the progress pipeline
　Adding the thickness of the pipe wall of the downstream pipeline can effectively reduce the noise of the control valve. However, once the noise occurs, it does not quickly dissipate along the length of the downstream pipeline. Therefore, this method is generally necessary for the entire downstream system.
　　

3. Pipe isolation method
　This method is the same as the method of adding pipe wall thickness, and it can also effectively reduce the noise generated by the electric valve. However, it is necessary to pay attention to three constraints. First, in the same way as changing the pipe label, the isolation method must also be used in the entire downstream system. Second, it is necessary to carefully install the isolation data to prevent the data from becoming "ineffective", which severely reduces the usefulness of this method. Third, the heat insulation method generally used for piping systems has limited usefulness in reducing noise. Because suitable materials are often not suitable for high temperatures, the adhesive used may melt, which fundamentally changes its sound quality and thermal characteristics.