Vent Silencer
Fire Tube Boilers
Flow Measurement Device
Sampling Cooler
Deaerators
 
 
 

 

  VENT
SILENCERS
  FAP VENT SILENCERS CHARACTERISTICS
  ACOUSTICAL PERFORMANCE
  RELIABLE
  NO PRESSURE FOR THE BODY
  BODY INTERNALLY INSULATED
  NOISE DISSIPATION WITH DIFFUSER & SPLITTER
  LOWEST PRESSURE DROP
  ACOUSTIC
  35 dB (A) noise reduction
  Mean noise reduction for the frequency range
The dB(A) Value is given Spectrum maximum from 1 to 4 kHz.
   
 
   
  APPLICATION
  FAP silencers are dedicated to reduce the noise generated by the compressed gaseous fluid blow off air, steam, gas (nitrogen oxygen and soon...). They can be installed down stream to any system discharging to the atmosphere any compressed fluid : valves, ejectors and soon....
   
  Design
  Absorption type silencer employing a single stage diffuser and containing an acoustic core to decrease high frequency noise.
   
  Construction
  All-welded construction of sheet and plate steel. Absorption material appropriate for operating conditions. Exterior surfaces are prime coated. Flanges are drilled to match 150 lb. american standard flanges. Side connections, mounting brackets, or special paint available at extra cost.
   
  DESCRIPTION
  FAR Silencer totally welded construction Quality of steel used is depending on characteristic of fluid and technical data (pressure temperature).
   
  Thermal expansion
  Fixings of the silencer represent a fixed point. For high temperature service thermal growth of the upstream pipe has to be absorbed by special system to be supplied upon request.
   
  OPTIONS
  Flanges, counter flanges, joints, bolts, supports, drain, special materials, special paints, rain protection, dismantable,expander.
   
  PRINCIPLE
  FAR silencers are based two principles of noise reduction
l Un noisy and controlled expansion of the fluid.
l fliss pat on of generated noise.
   
  OUTLINE TABLE
 
NO Model A B H W[kg]
1 S-2900 750 750 2650 1400
2 S-3250 1075 1075 2650 1900
3 S-3550 1400 1400 2650 2500
4 S-3400 750 750 3150 1500
5 S-3750 1075 1075 3150 2000
6 S-4050 1400 1400 3150 2800
7 S-3900 750 750 3650 1600
8 S-1075 1075 1075 3650 2300
9 S-4550 1400 1400 3650 3000
  note 1: Size in mm, weight in kg
note 2: these data could be changed dur ng the process des gn and niet size.
 

 
  CHOICE CRITERIA
   
  AERODYNAMICAL DATA
  Fluid type, pressure, temperature upstream the blow down system and permissible counter pressure at the entrance of the silencer.
Max. instantaneous gas flow through the silencer or the gas volume to be discharged, duration of the discharge and time of opening of the valve.
Connecting pipe diameter for the silencer. Position and installation drawing for the silencer and any complementary information.
Nazzle section for system of blow down.
   
  ACOUSTICAL DATA
  Noise reduction or residual sound pressure level required.
Position of measurement point in regards to discharge pipe.
 
  SILENCER SELECTION
  FAR will determine the best silencer consider ng the requested sound reduction, gas flow, pressure drop or counter pressure permissible and authorized sizeE

  

 



 

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