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Dürr Universal Silencers

At Mahan’s Thermal Products, we carry a complete line of noise control and filtration systems for a wide range of industries. Browse our selection and find the sound attenuation equipment best fitted for your application.


Durr Universal Vent Silencer

Blower Silencers

Blower silencers are required in many applications such as industrial processing and wastewater treatment. Silencers applied to blower applications will take on different configurations based on the specific noise that needs to be attenuated. Dürr Universal silencers are regularly applied to both the intake and discharge sides of a blower. With hundreds-of-thousands of blower silencers sold to date, Universal is an industry expert in meeting blower silencing needs.


Durr Universal Vent Silencer

Vent Silencers

Vent silencers are used in conjunction with systems that utilize a pressure relief valve. When gas is released to atmosphere it can create excessive noise that can be objectionable to surrounding areas. Typical applications for vent silencers include oil & gas, industrial and chemical processing, heat recovery systems and steam boilers. Dürr Universal vent silencers are used around the world in a wide range of applications, including steam vent silencers for industrial applications and blowdown silencers for gas compression stations.


Durr Universal Vent Silencer

Filter Silencers

The full line of filtration technologies from Dürr Universal cover gas turbines, compressors, blowers and diesel engines. From replacement filters and housings, our filters deliver effective and efficient filtration at high airflow levels with a minimum amount of pressure drop. We offer three types of elements for cartridge filters and filter/silencers: pleated cellulose media provides the highest efficiency, while pleated felt and wire mesh are suitable for applications that are less demanding. The physical characteristics of the pleated cellulose media are closely monitored to ensure consistent high-performance.


Durr Universal Vent Silencer

Vacuum Pump Liquid Silencers

Dürr Universal’s separator-silencers are used to remove liquid from gas flow vacuum systems using either liquid-sealed rotary positive blowers or liquid ring vacuum pumps. Separator-silencers may be required for both the inlet (vacuum) and the discharge (atmospheric) of a vacuum system. Only the most stringent acoustical environments require significant inlet silencing. An inlet separator provides corrosion protection for the vacuum pump by removing most, if not all, of the process liquid before it enters the vacuum pump. The vacuum pump or blower discharge is normally extremely noisy and requires a high-performance separator-silencer.