Low-noise trim control valves

Low-noise trim control valves

Low-noise trim control valves reduce aerodynamic or hydrodynamic noise in industrial piping, typically by utilizing multi-stage pressure drops, flow splitting, or tortuous path designs to minimize turbulence and cavitation. These specialized internals—often used in gas service—can reduce noise levels by up to 80% and reduce vibration in demanding applications

Low-noise trim control valves reduces control valve noise and vibration in a wide range of gas applications. 

Key Features for Noise Reduction:

Flow Splitting: Trims divide the main flow into smaller streams, reducing overall velocity and noise generation.

Expanded Flow Path: Reduces turbulence and dissipates kinetic energy smoothly.

Acoustic Attenuation: Some trims incorporate sound-damping materials or labyrinth structures.

Common Low-Noise Trim Types:

Diffuser Trims: Use multiple orifices to break down flow jets and control velocity.

Labyrinth Trims: Use tortuous flow paths to gradually reduce velocity through friction.

Expanded Outlet Trims: Control the expansion of gases after the pressure drop to minimize noise