Welcome to dB Noise Reduction

Elbow Silencer
Model 122

Elbow silencers - Model 122
Standard Grade, Sheet Metal Construction

Applications
  • Fan inlet and outlet silencers
  • Pressure blower silencers
  • Ventilation intake and discharge silencers
  • HVAC duct silencers
Benefits
  • Designed to match the dimensions of the connecting equipment or ductwork
  • No transitions or plenums required
  • Much higher attenuations than straight through silencer designs due to acoustic elbow effect
  • Aerodynamically designed long radius elbow baffle passages (CR = 0.5) for minimum pressure drop
Advantages over welded silencers
  • 20% to 30% cost savings
  • Much lighter than welded silencers
  • Suitable for many light/medium industrial applications
Accessories
  • galvanized and stainless steel mesh bird, insect and safety screens
  • Flanges match drilled to connecting equipment or ductwork
  • 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
  • Tapered transition/evase silencers for attenuation in restricted spaces

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

Product details

Flows

Up to 400,000 acfm

Pressures

Up to 30" wg

Temperatures

Up to 250° F

Sizes

From 24" X 24" X 36" ctr-line length

to 120" X 120" X 120" ctr-line length

(modules provided in banks for fast site assembly)

Unit weight

Up to 1,500 lbs per module

Materials

Mill galvanized (standard). Stainless steels and aluminum available

Construction

20 ga to 16 ga welded sheet metal casings with 22 ga acoustic baffles

Paint finishes:

Alkyd and enamel finishes available