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Fine Bubble Air Disc Diffuser (270mm)
Juntai Disc Diffuser: Advanced Aeration for Superior Water Treatment
What is a Disc Diffuser?







Juntai High Quality Diffuser Membrane
Juntai Disc Diffuser Parameter
Juntai Disc Diffuser
Disc diffusers are a dependable and widely used technology in municipal and industrial wastewater treatment. They are characterized by minimal pressure drop, high oxygen transfer efficiency, and even bubble distribution for maximum effectiveness.
Model |
DD215 |
DD270 |
DD340 |
Disc Diffuser Diameter(mm) |
215 |
270 |
340 |
Membrane Material |
EPDM 8600n from EXXONMOBIL USA |
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Carrier Plate |
Formula Strengthen ABS Material |
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Connector |
3/4" NPT Male thread |
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Bubble size(mm) |
1.0-2.0 |
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Design Flow(m3/h) |
1.5-2.5 |
3.0-4.0 |
5.0-6.0 |
Flow Range(m3/h) |
1.0-5.0 |
1.5-8.0 |
2.0-12.0 |
Standard Oxygen Transfer Efficiency |
≥39% |
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Service Area(m2) |
0.2-0.63 |
0.25-1.0 |
0.4-1.5 |
Service Life(years) |
3 ~ 7 |
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Number of Perforations(Pcs) |
4400 |
6600 |
11440 |
Thickness of Membrane(mm) |
2±0.1 |
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Use of Temperature(℃) |
0-80 |
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Industries Served
Customization and OEM/ODM Services
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Custom Plate Design
- The appearance and style of the diffuser plate (housing) can be customized.
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Branding Packaging Customization
- Your logo can be applied directly to the plate surface and the membrane.
The outer box packaging design and graphics can be tailored to your requirements.
- Your logo can be applied directly to the plate surface and the membrane.
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OEM/ODM Support
- We offer full OEM and ODM services, allowing for product development based on your specifications or our collaborative designs.
How to Choose the Right Aeration Product
Disc Diffuser Performance
·Oxygen Transfer Efficiency:
Larger discs have a larger surface area, potentially producing more bubbles and improving oxygen dissolution. However, actual efficiency also depends on bubble size, distribution, and aeration depth. Smaller discs may produce finer bubbles, enhancing oxygen transfer.
·Coverage:
Larger discs cover a larger area, potentially reducing the number required for a given treatment capacity.
Installation
·Layout Flexibility:
Smaller discs (215mm) offer greater flexibility for irregularly shaped or smaller tanks, enabling more even oxygen distribution. Larger discs (270mm, 340mm) simplify layout design for large aerobic tanks, reducing installation complexity and initial investment, though with slightly reduced flexibility.
·Installation Costs:
Larger discs may reduce the total number required, lowering installation points and initial costs, but might require stronger support structures.
Maintenance
·Clogging Risk:
All microporous discs can clog. Smaller discs (215mm) may require more inspection and cleaning effort due to greater numbers, but individual discs are easier to maintain or replace.
·Maintenance Costs:
Long-term costs depend on durability, clogging resistance, and ease of cleaning. Smaller discs may offer more flexible and lower-cost replacement options.
Layout and Design
·270mm and 215mm:
discs provide greater layout flexibility, suitable for irregular or smaller tanks, ensuring even oxygen distribution, though possibly requiring more installation points and higher initial investment.
Operation
· Energy Consumption:
Larger discs (e.g., 340mm) may reduce required blower power due to broader coverage, potentially lowering energy consumption, depending on actual oxygen transfer efficiency and system design.
Cleaning and Maintenance
·Clogging and Cleaning:
Smaller discs (215mm) might increase maintenance effort due to higher quantities, especially with high suspended solids or fibrous content. However, individual disc maintenance can be simpler and less costly.
·Replacement Costs:
Larger discs may have higher per-unit replacement costs but potentially less frequent maintenance. Smaller discs have lower individual costs but might incur higher overall expenses if replaced frequently.






















