When one is looking to obtain a noise reduction by the means of a silencer, ITS offers a wide range of exhaust silencers for heat engines for various applicationsrelated toacoustic insulation / soundproofing: protection of workersagainst noise, preservation of acoustic environment, limitation of noise emissions in the energy sector.

ITS offers powerful solutions at a reasonable cost in response to all the needs in the matter of soundproofing (preventive or curative) by the means of equipment (standard or tailor made) for which the quality of design and of execution meets the highest level of requirement in this area for an efficient fight against noise.

Theexhaust silencers for heat engines offered by ITS allow to reduce the noise due to the discharge of combustion gases from diesel or gas engines and to provide (if required) associated features (such as: spark arrester, pollution control by insertion of a catalytic converter ...) for fixed installations (power plants and sometimes cogeneration units, standby generators: sometimes on platforms at sea, emergency gen-sets) or mobile (ships, locomotives ...).

The noise level close at hand is generally well below the lower values of exposure of workers to noise trigging action and the noise levels in environment are generally well below the limits imposed by regulations in order to avoid sound nuisance.

They are usually made of metallic casing and internal components made of steel (stainless if requested). Depending on needs, the linings of exhaust silencers for heat engines are with a mineral fiber filling. Some silencers may have an insertion loss Di that can reach 50 dB as a standard with respect to a noise spectrum with low frequencies (a higher performance can be obtained by the means of special constructions).

In many cases, the required acoustic performance can be achieved by implementing a single muffler (either reactive or dissipative, or combined), higher performance being obtained by combining two (or in cases range: 3) mufflers installed in series.

Regarding silencers proposed by ITS their performance is measured in laboratory according to the current standard:

  • standard NF ISO 6798 Reciprocating internal combustion engines - Measurement of emitted airborne noise - Engineering method and survey method

The exhaust silencers for heat engines proposed by ITS can be delivered as a kit ready to assemble with assembly instructions or be installed turnkey.

A guarantee of acoustic performance on site is issued for each installation of exhaust silencers for heat engines .

exhaust silencer
for heat engines
exhaust silencer
for heat engines

The exhaust silencers for heat engines offered by ITS are robust constructions with quality finishes ensuring a high durability and for which a precise sizing and a tailor made design allow to optimize the aerodynamic performance for an appropriate operation of the power production facilities and a maximal performance.

exhaust silencer
for heat engines
exhaust silencer
for heat engines

 

 

Download a brochure related to this equipment

Regarding the principle basing their acoustic performance, the exhaust silencers for heat engines proposed by ITS can be absorptive (dissipative), reactive or mixed: reactive / absorptive.

Brochures are available in relation to a standard range, with insertion loss of 25 dB, 35 dB, 40 dB or 45 dB (*) which covers the usual requirements for engines with a power up to 2 MW (silencers with or without a spark arrester).

For higher performance or for higher power engines: consult us.

*compared to a typical engine sound spectrum (a calculation can be made on a case-by-case basis to determine the insertion loss of any type of engine of any brand)

Absorptive exhaust silencer without spark arrestor ABS
Absorptive exhaust silencer with spark arrestor ABS-IS
Reactive / absorptive exhaust silencer without spark arrestor REAB35, REAB40, REAB45
Reactive / absorptive exhaust silencer with spark arrestor REAB35-IS, REAB40-IS, REAB45-IS
Reactive exhaust silencer with spark arrestor CP18, CP24, CP32
Spark arrestor SA

See the frequent asked questions related to this equipment

See the frequent asked questions related to this equipment

end faq

As necessary, related equipment can also be provided such as supports, compensators, connecting piping, flanges and counter flanges ...

accessories for exhaust silencers
for a heat engine
 

 

 

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Such equipment is necessary because, stationary or embedded, reciprocating internal combustion engines (thermal engines) generate significant noise in the exhaust.

Consequently, they must be equipped with soundproofing devices being efficient and durable (to withstand the high temperature and the aggressiveness of the burnt gases) to limit their impact on the sound environment.