One Stage HUSH Trim is a specialty trim designed to reduce noise associated with compressible fluids and the undesirable effects of flashing and cavitation that would occur with most single pressure drop trims.
The trim does not prevent flashing or cavitation, however the damaging effects are reduced to acceptable levels through the use of many small ports. The HUSH cage consists of a single cylinder with a large number of radially drilled orifices. The fluid exits the numerous orifices as low energy jets resulting in significant reductions in noise or erosion.
Although many standard designs are available, One Stage HUSH is often custom engineered to provide various flow characteristics for optimal performance under specific operating conditions.