There are three different ways in which noise is produced in a boat fitted with an engine: Noise due to engine suction, Noise generated by the structure vibrating, and Noise from the engine's exhaust fumes. SilencERmarine is specialized in the design, development, and manufacture of complete exhaust systems (R.I.Na. - Italian Naval Registry, D.N.V., and Lloyd's Register approved as well as any other approvals required) with particular attention for noise control solutions from the engine to the steel exhaust outlets.
Complete exhaust systems are produced with the highest standard of finish and in a wide range of different geometric shapes.
For our silencers and exhaust systems, we use the best stainless steel, AISI 316L (EN 1.4432) as standard to manufacture all those components that, because of their location in the exhaust system, cannot be made of GRP.
Our highly skilled craftsmen produce components in AISI 316L stainless steel, though on request even particularly complex components can be made of other materials (Inconel, AISI 304, Fe, etc.).
Our wide engineering experience in designing silencer can provide an optimized choice when speaking of soundproofing your marine equipment.
To manufacture their GRP (Glass Reinforced Polymer) products, SilencERmarine uses special resins (R.I.Na. - Italian Naval Register - approved), which also guarantee excellent resistance to both chemical and galvanic corrosion (parasite currents), along with high structural resistance, even at high temperatures.
The resins used prevent corrosion and aging phenomena, feature excellent sound muffling properties, and guarantee a higher melting point when compared with plastic silencers. In fact, while a wet exhaust system generally works at a temperature of around, 60°C, a SilencERmarine GRP silencer remains efficient even at temperatures in excess of 150° C, which are only reached if problems occur in the engine cooling system. This avoids the partial melting at temperatures of around 100° C that often occurs with plastic silencers, which may be more economical but are certainly less reliable.
Our cylinder-shaped GRP silencers and connection pipes are made by winding continuous fiberglass filaments impregnated with a special resin around a spindle using a technique borrowed from the aerospace industry.
The path and tension of the winding are generated and gauged using a computerized system (filament winding technology). SilencERmarine, along with their most highly skilled experts in laminating techniques, can also manufacture GRP components that do not necessarily form part of the exhaust system but may be required to complete a particular installation.
These are manufactured to customer specifications.