VS-Series
Vent Silencer
Engineered silencer for pressurised steam, air or gas discharge, designed around flow, pressure and the acoustic limit at the boundary.
Product overview
A vent silencer sized for the specific discharge it has to handle. Diffuser and absorptive stages are selected from the flow, pressure and temperature of the vent, and from the noise level that has to be met at a stated distance.
The problem it solves
An unsilenced high-pressure vent is one of the loudest sources on a plant, and it usually discharges near occupied areas or at the site boundary. Safety valve lifts, start-up blows and continuous bleeds each present a different acoustic problem, and a generic silencer solves none of them well.
Working principle
Discharge is first expanded through a perforated diffuser, which breaks a single high-velocity jet into many small ones and shifts the noise energy to frequencies that attenuate more readily. The flow then passes through an absorptive section that removes the remaining energy, sized so that the residual backpressure stays within what the venting system can accept.
Applications
- Safety and relief valve discharge
- Boiler start-up and continuous vents
- Compressed air and gas blowdown
- Continuous and intermittent vent duty at the site boundary
Specifications
- SizingFlow, pressure and required attenuation needed
- MaterialCS with SS internals
- ConnectionsFlanged
- MountingVertical, outdoor rated