Engine Exhaust Silencers

For the majority of engines and operating conditions, EN Series Silencers provide maximum noise attenuation within acceptable back pressure limits. Most naturally aspirated and supercharged engines need this type of silencer. Many turbocharged engines are best silenced with this design also.

• Pressure Drop Coefficient of 4.2 C and 5.3 C
• Wide range of flanged connections
• Single-coat aluminium rated for 537 °C
   

Many turbocharged engines and some naturally aspirated engines require very low exhaust system back pressures for maximum performance. For these engines, ET Series Silencers are recommended to provide adequate silencing while imposing negligible restriction on exhaust gas flow.

• Pressure Drop Coefficient of 0.5 C and 1.0 C
• Wide range of flanged connections
• Single-coat aluminium rated for 537 °C

Operating locations exist where fire hazards and safety codes require removal of sparks from exhaust gases. Our ES Series Silencers are engineered to perform the dual function of spark arresting and silencing for all internal combustion engines. Large capacity spark traps are provided on each unit which can be easily opened for periodic cleaning.

• Pressure Drop Coefficient of 4.2 C

• Flanged connections to match ANSI specifications

• Single-coat aluminium rated for 1000°F

QS Series Silencers are designed for engine applications that require higher acoustic performance in a cylindrical configuration. They have a high-performance internal design incorporating both reactive and absorptive features that deliver excellent broadband attenuation.

• Pressure Drop Coefficient of 5.0 C

• Wide range of flanged connections

• Up to 50dB attenuation

QSN Series Silencers are designed for engine applications that require good acoustic performance in an economical, low-profile package size to fit inside enclosures. They can be installed directly above the engine for simplified pipework. QSN7 and QSN8 are low shell temperature designs with internal shell insulation for lower shell temperature.

• Wide range of flanged connections

• Custom inlet configurations available

• Coat of heat-resistant paint

QSE (Single-Inlet) and QSF (Dual-Inlet) Series Silencers are designed for engine applications that require higher acoustic performance in a low-profile package size to fit inside enclosures. All are low shell temperature designs with internal shell insulation for lower shell temperature and excellent attenuation.

• Wide range of flanged connections

• Custom inlet configurations available

• Coat of heat-resistant paint