Product Video
This video gives you a quick look at all our aeration solutions — from fine bubble ceramic diffusers to disc diffusers. Learn how they work together for efficient wastewater treatment.
Product Features
1. Simple Structure & Easy Installation
Designed with a straightforward structure that allows for quick and simple installation.
2. Reliable Sealing — No Air Leakage
Ensures tight sealing performance to prevent any unwanted air leakage during operation.
3. Maintenance-Free & Long Service Life
The robust build offers a maintenance-free design and a long operational lifespan.
4. Corrosion Resistance & Anti-Clogging
Resistant to corrosion and designed to minimize clogging, ensuring stable performance.
5. High Oxygen Transfer Efficiency
Delivers consistently high oxygen transfer rates to improve aeration efficiency.


Packing & Delivery
Our Ceramic Fine Bubble Diffusers are securely packaged to prevent damage during transportation and ensure they arrive ready for installation. Please refer to the following packing images for reference.


Technical Parameters
Model | HLBQ178 | HLBQ215 | HLBQ250 | HLBQ300 |
Operating Air Flow Range (m³/h·piece) | 1.2-3 | 1.5-2.5 | 2-3 | 2.5-4 |
Designed Air Flow (m³/h·piece) | 1.5 | 1.8 | 2.5 | 3 |
Effective Surface Area (m²/piece) | 0.3-0.65 | 0.3-0.65 | 0.4-0.80 | 0.5-1.0 |
Standard Oxygen Transfer Rate (kg O₂/h·piece) | 0.13-0.38 | 0.16-0.4 | 0.21-0.4 | 0.21-0.53 |
Compressive Strength | 120kg/cm² or 1.3T/piece | |||
Bending Strength | 120kg/cm² | |||
Acid & Alkali Resistance | Weight loss 4–8%, not affected by organic solvents |