dB Noise Reduction LogodB Noise Reduction Logo
dB Noise Reduction Facebook page. dB Noise Reduction LinkedIn page.
 dB Noise Reduction toll free
Inlet box silencers - Model 133 industrial grade, all welded construction - dB Noise Reduction

 

Applications

  • Fan inlet silencers
  • Pressure blower inlet silencers
  • Motor silencers

Benefits

  • Reduces cost on fans and blowers by serving as a combination silencer/fan inlet box, all in one
  • Much higher attenuations than straight through silencer designs due to acoustic elbow effect
  • Aerodynamically designed long radius elbow baffles (CR = 0.5) for minimum pressure drop

Accessories

  • Galvanized and stainless steel mesh bird, insect and safety screens
  • Flanges match drilled to connecting equipment or ductwork; rectangular or circular
  • Mounting brackets, support legs, saddles and feet for silencer installation
  • Access panels and doors for inspection of internals
  • Variety of fabric, film and mesh baffle liners available for different types of service
  • Pressure and flow measurement devices including pressure taps, rings and piezometer tubes

Design options

  • Cleanable/removable baffle designs for dirty applications including special silencers that can be serviced in-situ
Request a quote | dB Noise Reduction

 

Inlet box silencer features

Inlet box silencer features - image - dB Noise Reduction

Alternative construction - Model 132 standard grade, sheet metal silencers

Product details

Flows:

Up to 500,000 acfm

Pressures:

Up to 120" wg

Temperatures:

Up to 250° F (standard)
Up to 1,200° F (special)

Sizes:

From 12" X 12" X 24" long
to 120" X 120" X 240" long

Unit weight:

Up to 20,000 lbs

Materials:

Carbon, galvanized and stainless steels,
aluminum, special alloys, high temperature
steels, FRP and PVC

Construction:

14 ga to 3/8" welded casings with 18 ga
acoustic baffles

Paint finishes:

Alkyd, enamel, high heat, inorganic zinc,
epoxy and polyurethane

For other customized silencer designs, please contact us and we will be happy to assist you.