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ProductsHigh-Efficiency Fine Bubble Disc Diffuser | EPDM & Silicone | Hydronovus
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High-Efficiency Fine Bubble Disc Diffuser | EPDM & Silicone | Hydronovus

Maximize oxygen transfer in your wastewater treatment plant with Hydronovus Fine Bubble Disc Diffusers. Available in EPDM, Silicone, and PTFE. Perfect for MBBR and aeration tanks. Request a quote today.

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Engineered for superior aeration performance, the Hydronovus Fine Bubble Disc Diffuser delivers maximum oxygen transfer efficiency (OTE) with minimal pressure drop. Designed for municipal and industrial wastewater treatment, our diffusers provide uniform bubble distribution to ensure optimal fluidization of MBBR media and efficient biological treatment. Available with premium EPDM, Silicone, or PTFE-coated membranes to withstand diverse and aggressive water conditions.

🌟 Key Features


  • Exceptional Oxygen Transfer: Precision-perforated micro-slits generate uniform fine bubbles (1-3mm), maximizing the gas-liquid contact area.
  • Low Pressure Drop & Energy Saving: Aerodynamic base design minimizes airflow resistance, significantly reducing blower power consumption.
  • Self-Cleaning & Anti-Clogging: The membrane slits automatically close when airflow stops, preventing sludge backflow and clogging.
  • Heavy-Duty Construction: Features a robust ABS/PP support body and a premium retention ring to ensure the membrane stays securely in place under high pressure.
  • Extended Service Life: High-tear-resistance materials ensure a long operational lifespan of 5 to 10 years, depending on the application and membrane type.
  • Easy Installation: Standard 3/4" threaded connection (NPT/BSPT) allows for quick mounting on existing PVC, CPVC, or stainless steel lateral pipes.

🧪 Membrane Material Options


  • Standard EPDM: Ideal for conventional municipal sewage and most industrial wastewater. Excellent elasticity and durability.
  • Silicone: Highly resistant to aggressive chemicals, oils, and greases. Performs exceptionally well in high-temperature environments.
  • PTFE-Coated EPDM: The ultimate non-stick surface. Prevents calcium scaling and biological fouling, drastically reducing maintenance frequency.

📊 Technical Parameters (技术参数表)


Model
HNBQ-170
HNBQ-215
HNBQ-270
HNBQ-350
HNBQ-650
Bubble Type
Coarse Bubble
Fine Bubble
Fine Bubble
Fine Bubble
Fine Bubble
Size
6 inch
8 inch
9 inch
12 inch
675*215mm
MOC
EPDM/Silicone/PTFE – ABS/Strengthened PP-GF
Connector
3/4"NPT male thread
Membrane Thickness
2mm
2mm
2mm
2mm
2mm
Bubble Size
4-5mm
1-2mm
1-2mm
1-2mm
1-2mm
Design Flow
1-5m3/h
1.5-2.5m3/h
3-4m3/h
5-6m3/h
6-14m3/h
Flow Range
6-9m3/h
1-6m3/h
1-8m3/h
1-12m3/h
1-16m3/h
SOTE
≥10%
≥38%
≥38%
≥38%
≥40%

(6m submerged)
(6m submerged)
(6m submerged)
(6m submerged)
(6m submerged)
SOTR
≥0.21kg O2/h
≥0.31kg O2/h
≥0.45kg O2/h
≥0.75kg O2/h
≥0.99kg O2/h
SAE
≥7.5kg O2/kw.h
≥8.9kg O2/kw.h
≥8.9kg O2/kw.h
≥8.9kg O2/kw.h
≥9.2kg O2/kw.h
Headloss
2000-3000Pa
1500-4300Pa
1500-4300Pa
1500-4300Pa
2000-3500Pa
Service Area
0.5-0.8m2/pcs
0.2-0.64m2/pcs
0.25-1.0m2/pcs
0.4-1.5m2/pcs
0.5-0.25m2/pcs
Service Life
>5 years

🏭 Typical Applications

  • MBBR & IFAS Systems (Perfect pairing with Hydronovus bio-media)
  • Standard Activated Sludge Aeration Tanks
  • Sequencing Batch Reactors (SBR)
  • Aquaculture & RAS (Recirculating Aquaculture Systems)
  • Ozone Diffusion (Requires Silicone/PTFE membrane)