No matter how well you insulate the engine compartment and minimize vibration, there's always one path for noise to escape into the outside world and to meet the boats owners' ears, keen to enjoy the sea in quiet and silence: the exhaust system.

Nowadays the most part of the pleasure boats and even many workboats are fitted with "wet" exhaust systems, in which the cooling water is injected into a special mixing manifold - the riser - to keep the gases cool and muffle the sound. This reduces the noise to some extent and the temperature to such a level as make it possible to use reiforced rubber hoses instead of metal pipes, easier to place into the layout of the hull. The water then travels out with the exhaust gases to an outlet above or even below the waterline.

This solution allows to take under control the exhaust noise but nowadays, whether for the increasing demand of more comfort onboard from the shipowners or even the next (within 2005) European Directives concerning noise pollution from pleasure power-boats (94/25/CE Directive and its later amendments) it's growing the need to include a silencer in the system to bring noise levels down still further. Even fitting an efective separator in those crafts provided with an engine generator which, as everybody knows, mostly operating during the night, makes the sleeping onboard and the living on deck nearby the other boats a tricky situation, due to the sploshing noise which accompanies every marine engine generator provided with "wet" exhausts sploshing outboard.

For these aspecs, represents a reliable choice for a definitive solution to the exhaust noise problems of marine engines, whether they are main or auxiliary propulsions or generators as well.

<<TORNA INDIETRO