Absorption silencer

Absorption silencers use heat resistant sound absorbing materials which are held in position by perforated tube(s).

Noise reduction is achieved by converting the energy in the sound pressure waves into heat. This heat is the byproduct of the friction generated between the exhaust gas particles and the sound absorbing material.

Absorption silencers are manufactured in various designs to suit the required application, straight through silencers where low backpressure is required to multi pass silencers suited to LPG engines with high frequency noise due to higher gas velocities.