We use cookies and similar technologies on this website ("Cookies"). In order to allow their use to analyze website usage and to enhance functionality, please click on “Accept”. To change the settings and select which specific Cookies we are allowed to use, or to obtain more detailed information, please click on “Details”.




Below, you can activate/deactivate the individual technologies that are used on this website.
Consent to all

These Cookies make a website usable by providing basic functions such as page navigation, language settings, and access to protected areas. As the website is unable to function properly without them, you cannot opt out of this kind of Cookies.


These Cookies help us to improve the functionality and attractiveness of our websites, and your user experience by saving, for example, your settings, and selections as well as filters, and to recognize your device on subsequent visits.


These Cookies allow us, and the service providers (e.g. Google via the Google Analytics service) to collect and analyze information and statistics about your interaction with our website. This helps to optimize our website using the findings obtained.

Vent Silencers

Vent silencers are typically used in conjunction with relief or control valves on piping systems for compressed gases. When gas is released to atmosphere, it can create excessive noise that can be objectionable to surrounding areas. Dürr Universal has particular expertise as a supplier of steam vent silencers for industrial applications and blowdown silencers for gas compression stations.

Vent silencer application areas

Typical applications for vent silencers include power plants, oil and gas, industrial, chemical processing, heat recovery systems and steam boilers. Dürr Universal’s vent silencers are used around the world in many applications.

HV Series vent silencers effectively silence high-velocity air, steam and gas vents, as well as blowdowns to atmospheres in which sonic or critical flow conditions exist in the valve.

Typical pressure relief applications include steam boiler, super-heat headers, boiler startup and high-pressure purge air vents, natural gas blowdown, switch valves, compressor blow-offs, autoclaves and steam ejectors.

Vent silencer design

The concentric annular ring design and the wrapped Acousti-Tube vent silencer design offer a choice of silencer profile and configuration to meet site-specific requirements.