How to prevent the noise of regulating valve?

In the use of control valve environmental protection issues, the noise problem is very prominent. As the use of regulating valve, the inevitable result of the fluid decompression, speed changes and vibration, noise generation is difficult to avoid, the problem is to control the size of the noise. In process installations, noise-producing equipment such as motors, pumps, compressors, boilers, regulating valves, etc., and regulating valves account for a significant portion of the noise. The types of control valve noise are mechanical noise, hydrodynamic noise and aerodynamic noise. In view of its production mechanism, the selection of control valve should be made to predict and put forward preventive measures.

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