Coarse Bubble Tubular Diffuser
800 mm coarse bubble tubular diffusers in uPVC+ABS and SS 304/316 variants, producing 5–15 mm bubbles for mixing, scouring, MBR air scouring, and high-solids aeration applications.
The AIRFIN WB 800 Coarse Bubble Tubular Diffuser is an 800 mm tubular diffuser designed for effective mixing, scouring, and aeration in wastewater treatment. Available in uPVC+ABS and SS 304/316 construction, it produces coarse bubbles of 5–15 mm to handle higher solids concentrations, resist clogging and fouling, and provide efficient aeration across a wide airflow range of 0–40 m³/hr.
With dual orifice sizes (4 mm and 12 mm) and 26/44 perforations, the WB 800 delivers uniform air distribution for equalization tanks, MBR air scouring, and various treatment processes. The 3/4" BSP connection ensures straightforward integration into existing piping systems.
The uPVC variant weighs just 0.6 kg for cost-effective standard installations, while the SS 304/316 variant at 1.6 kg is built for corrosive or high-temperature environments — giving engineers the flexibility to match material of construction to site conditions.
Key features
- Available in uPVC+ABS and SS 304/316 material of construction
- Dual orifice diameters (4 mm and 12 mm) for flexible bubble distribution
- Wide airflow range of 0–40 m³/hr per diffuser
- 26/44 perforation ports for uniform air distribution
- 3/4" BSP threaded connection for easy installation
- Coarse bubble size of 5–15 mm for aggressive mixing and anti-clogging
- 800 mm length for maximum coverage per unit
- Suitable for MBR air scouring applications
Outcomes
- Airflow capacity up to 40 m³/hr per diffuser
- Standard design flow of 20 m³/hr per diffuser
- Lightweight uPVC variant at 0.6 kg; robust SS variant at 1.6 kg
- Effective mixing and scouring in high-solids wastewater environments
Who it's for
Municipal and industrial wastewater treatment plants requiring coarse bubble tubular aeration for equalization, mixing, scouring, MBR membrane air scouring, and treatment processes handling high-solids concentrations.
Models & variants
Two WB 800 variants — uPVC+ABS for cost-effective installations and SS 304/316 for corrosive or high-temperature environments.
800 mm coarse bubble tubular diffuser in uPVC+ABS construction for standard wastewater applications.
| Spec | Value |
|---|---|
| Size | 800 mm |
| Airflow range / diffuser | 0–40 m³/hr |
| MOC | uPVC + ABS |
| Standard design flow | 20 m³/hr |
| Connection size | 3/4" BSP |
| Diameter of small / big orifice | 4/12 mm |
| Bubble size | 5–15 mm |
| Total no. of perforation | 26 / 44 Nos. |
| Weight | 0.6 Kg |
Performance envelope
Operating range across WB 800 UPVC and WB 800 SS models.
| Metric | Min | Max | Unit |
|---|---|---|---|
| Airflow range / diffuser | 0 | 40 | m³/hr |
| Standard design flow | 20 | 20 | m³/hr |
| Bubble size | 5 | 15 | mm |
| Weight (UPVC: 0.6 · SS: 1.6) | 0.6 | 1.6 | Kg |
Common specifications
Specifications shared across WB 800 UPVC and SS variants.
| Specification | Value |
|---|---|
| Size | 800 mm |
| Airflow range | 0–40 m³/hr |
| Standard design flow | 20 m³/hr |
| Connection size | 3/4" BSP |
| Orifice diameter (small / big) | 4 / 12 mm |
| Bubble size | 5–15 mm |
| Total perforations | 26 / 44 Nos. |
Applications
Equalization & mixing
Coarse bubble mixing for flow and load equalization in wastewater treatment tanks.
MBR air scouring
Membrane bioreactor air scouring to prevent fouling and maintain membrane performance.
High-solids aeration
Efficient aeration and treatment in tanks with higher solids concentrations.
Scouring & cleaning
Aggressive air scouring for tank cleaning and process intensification.
Focus areas
- Waste Water Treatment