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Circular EPDM Acoustic
Flexible Connections

Circular EPDM Acoustic Flexible Connections - Model 523 and 524
Industrial Grade, All Welded Construction

Applications
  • Fan inlets and outlets
  • Pressure blower inlets and outlets
  • Compressor inlets and outlets
  • Scrubber inlets and outlets
  • Stack inlets
  • Ventilation and process ductwork
Model 523 circular EPDM acoustic flexible connections
  • Tough, 1/8" thick, layered EPDM flex membrane with internal nylon scrim for superior tear strength
  • Resistance to ozone and UV exposure, and cold cracking makes it ideal for outdoor use
  • Good for airstream flows to 6,000 fpm and pressures from -30" wg to +120" wg
  • All welded, matched and drilled flanges
  • Backing bars fastened in place with zinc plated hardware
  • Acoustically rated design with absorptive acoustic pillow and acoustic outer barrier
Model 524 circular EPDM flexible connections
  • Identical construction to Model 523 flexible connections, with an aerodynamically designed, protective metal flow liner
  • Good for airstream flows over 6,000 fpm and pressures from -120" wg to +120" wg (with a flow liner)
  • Double deflectors are also available for extra flow protection and noise reduction
Circular EPDM acoustic flexible connections
Circular EPDM acoustic flexible connections features image

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

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Product details

Operating temperatures

Up to 225° F

Flows

Up to 6,000 fpm (Model 523)

Over 6,000 fpm (Model 524)

Pressures

-30" wg to +120" wg (Model 523)

-120" wg to +120" wg (Model 524)

Sizes

From 12" ID to 120" ID (standard)

Larger sizes available

Flange-to-flange length

8" for flanges less than 4"

10" for flanges 4" and larger

Lateral and axial movement

+/- 0.5"

Unit weight

Up to 800 lbs (standard sizes)

Materials

Carbon steel flanges, backing bars and flow liner (if supplied), zinc plated backing bar hardware and EPDM flex membrane, absorptive acoustic pillow and acoustic outer barrier


Stainless steel flanges, backing bars, flow liners and hardware available


Galvanized construction also available

Paint finishes:

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