MegaStream Anti-Noise Control Valve Trim

The pressure drop in MegaStream trim is distributed so that it occurs not only at the throttling point between the plug and seat but also at each stage, from the inside of the attenuator to the outside. This pressure drop occurs largely as a result of the sudden expansions and contractions that take place as the flow passes through the MegaStream trim. Each stage is designed to take a small pressure drop, avoiding the high velocities present in single-throttling-point trims. This gradual pressure reduction is achieved by designing sufficient stages to keep the velocity low.