Disc Diffuser Design Parameters by Categories

The DDI SuperFlex line of aeration diffusers provides world-class USA-made fine-bubble diffusers that can be used in, among others, municipal and industrial aeration applications. Whether you’re installing a new aeration system or replacing existing diffusers, our consultative sales teams can provide all options allowing you the confidence for proper materials selection. The DDI SuperFlex line of aeration diffusers service all major brands.

What are the mechanical specification details for the DDI SuperFlex Disc Diffusers?

DISC SIZEddi-superflex-disc-diffuser-e1460760881882

9” diameter (229 mm)

12” diameter (305 mm)

AIR CAPACITY

9” (229 mm) at 0–10 scfm (15.8 Nm3/h)

12” (305 mm) at 0–18 scfm (28.5 Nm3/h)

MOUNT

Saddle Mount or Universal Diffuser Mount (UDM) 3/4” threaded

STRENGTH

Withstands edge load > 600 lbs (270 kg) & Anti-rotation design

BODY MATERIAL

Fiberglass-filled polypropylene, High strength, Chemical resistant, UV resistant, Triple-check valve, High-temp capability over 230°F (110°C),Cold-temp resistant

PIPING

3” low-stress/low-buoyancy force, 4” 90 mm 110 mm, Heavy wall. 3” = SDR 26 0.135” (3.4 mm) wall, 4” = SDR 26 0.173” (4.3 mm) wall. Other pipe sizing options available.

Available pipe material: uPVC, CPVC, PE, PP, Stainless Steel, Composite resin

MEMBRANES

EPDM, PTFE-coated, Silicone, Other polymers available

PERFORATION

MicroPore (fine bubble), MegaPore (high-capacity fine bubble), Custom pore patterns available

PRESSURE LOSSES

4” to 12” (1 to 3 kPa)

Carefully consider all options from disc size through diffuser membrane materials selection. Selecting the correct material will assure successful operational efficiency of diffusers in your application.

Consider speaking with a representative from Dorian Drake International on all the available diffuser specification options.

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Dorian Drake International presents it’s DDI SuperFlex line of aeration diffusers, membrane diffusers, and specialty diffusers for new and existing municipal and industrial aeration applications.

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