ACOUSTIC SILENCER SMd40

Acoustic Silencer SMd40

OPERATING PRINCIPLE

SMd40 silencers are of the mixed type: Reactive-Absorbent. The gas enters a double expansion chamber with a venturi-type coupling device, then passes through an absorption silencer.

DESCRIPTION

The nominal inlet diameter completes the designation of the silencer (P.e. SMd40 DN125).

The inlet mouth can be radial or axial. The output is axial. The body of the silencer is made of steel with a cylindrical shape closed by conical or pumped bottoms.

 

Maximum working pressure 4900 Pa.

Maximum working temperature 500 ºC.

Silenciador acústico SM25. Silenciador acustico o atenuador acustico para escape de motor modelo sm15

PROTECTION

The silencer is treated with a high-temperature finish paint.

The silencer is not designed to withstand temperatures and pressures resulting from fuel explosions.

ACCESSORIES

Silencers can be provided with the following optional accessories:

  • Flanges and counter flanges.
  • Set of gaskets and screws.
  • Supports.
  • Spark extinction chamber.

For special equipment or special situations such as: temperatures above 500 ºC, diameters above 800 mm., Special steels, etc … please:

Contact us.

Silenciador acustico o atenuador acustico para escape de motor modelo sm15

AVERAGE SOUND DIMMING CURVE

Measured under normal operating conditions and once the background noise has been eliminated. (Parasites)

According to ISO 6798 standard.

Graph of the mean sound attenuation curve for smd40 acoustic silencers

ASSEMBLY

  1. SMd40 silencers.
  • The silencers should be installed as close to the engine as possible.
  • The direction of flow must be respected.
  1. Expansion compensator.
  2. Vertical supports.
  3. Exhaust manifold.

 

The fixing system of the silencer must allow the free expansion of the silencer.

Ejemplo de montaje de un silenciador acústico smd40

DIMENSIONS

Length tolerance ± 3 mm.

Dimensions in mm. weight in kg.

Table to choose the smd40 silencer according to its nominal diameter, weight, length, etc.
Sketch of the smd40 acoustic silencer and its flow direction

DETERMINATION OF THE NOMINAL DIAMETER OF THE SILENCER        

Smd40 acoustic silencer insulation table. Power or volumetric flow of the engine and the pressure drop of the acoustic silencer marking the area of use of this model
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