How To Control The Noise Of Pressure Reducing Valve

How To Control The Noise Of Steam Pressure Reducing Valve

How does the steam pressure reducing valve control the noise? It is because the pressure reducing valve cannot reduce the pressure stably and then vibrations may occur. There may also be signs that some parts inside the pressure reducing valve are loose, which makes the pressure reducing valve unable to reduce the pressure normally.

Our commonly used steps to detect noise generation: mechanical noise, fluid noise, air noise. We use the exclusion method to check and exclude it.

This kind of mechanical vibration noise has nothing to do with the flow speed of the medium, it’s mostly due to the unreasonable design of the steam pressure reducing valve itself.

The measures to reduce mechanical vibration and noise are to rationally design the clearance of the pressure reducing valve bushing and the stem, the machining accuracy, the natural frequency of the valve, and the rigidity of the moving parts, and to select the materials correctly.

Fluid noise is related to the corrosion performance of the medium and the flow velocity of the medium.

The first reason for the air noise is due to the turbulence of the fluid; the shock wave caused by the fluid reaching the critical flow rate is generated. The aerodynamic noise cannot be completely eliminated, and the noise caused by the velocity of the air cannot be avoided.