Fine bubble tube diffuser
Tube Diffusers for Aeration Tanks and Linear Air Distribution
Blue Water tube diffusers support wastewater aeration projects that need longer air release length, flexible membrane materials, and practical replacement planning for oxidation tanks, biological basins, and aquaculture systems.

Blue Water tube diffusers support long wastewater basin layouts, oxidation tanks, liftable aeration systems, and industrial projects requiring EPDM, Silicone, or TPU membrane review.
Product Specifications / 产品参数
Tube diffuser product specifications.
Use BW-TD model data to compare diameter, airflow per meter, service area, oxygen transfer, and connection before quotation.
| Parameter | BW-TD-65 | BW-TD-93 | BW-TD-113 |
|---|---|---|---|
| Diameter | Dia. 65 mm | Dia. 93 mm | Dia. 113 mm |
| Length options | 500 / 750 / 1000 mm, custom with MOQ | 500 / 750 / 1000 mm, custom with MOQ | 500 / 750 / 1000 mm, custom with MOQ |
| Membrane wall thickness | 0.6 +/- 0.03 mm | 0.6 +/- 0.03 mm | 0.6 +/- 0.03 mm |
| Membrane material | TPU / EPDM / Silicone | TPU / EPDM / Silicone | TPU / EPDM / Silicone |
| Perforations per meter | 13000-18000 | 19000-23000 | 25000-30000 |
| Pore size | <=1 mm | <=1 mm | <=1 mm |
| Bubble diameter | <=2 mm | <=2 mm | <=2 mm |
| Airflow range | 6-8 m3/h/m | 8-15 m3/h/m | 10-20 m3/h/m |
| Service area | 0.8-1.2 m2/m | 1.75-3.0 m2/m | 2.5-4.0 m2/m |
| Oxygen transfer at 6 m clean water | >=40% | >=35% | >=32% |
| Oxygenation capacity | >=0.6 kgO2/h | >=0.58 kgO2/h | >=0.55 kgO2/h |
| Power efficiency | >=9 kgO2/kWh | >=8.9 kgO2/kWh | >=8.5 kgO2/kWh |
| Pressure loss | <=6000 Pa | <=4000 Pa | <=3500 Pa |
| Applicable water depth | 3-8 m | 3-8 m | 3-8 m |
| Inner support pipe | ABS / PP | ABS / PP | ABS / PP |
| Clamp | 304 stainless steel hose clamp | 304 stainless steel hose clamp | 304 stainless steel hose clamp |
| Connection | DN25 / DN32 thread | DN25 / DN32 thread | DN25 / DN32 thread |
When Buyers Choose Tube Diffusers
Tube diffusers are useful when the tank needs linear air distribution, higher diffuser surface length, or a layout that works better with pipe grids and replacement access.
Linear Air Coverage
Long membrane surface helps distribute air along pipe runs and tank zones.
Material Matching
EPDM, silicone, and TPU options help match wastewater conditions and operating cost targets.
Retrofit Planning
Tube format can fit selected aeration grids where disc diffusers are not the best layout.
Maintenance Access
End fittings and clamps support practical inspection and replacement routines.
Membrane Material Options
The best material depends on water quality, chemical exposure, operating temperature, cleaning plan, and project budget.

EPDM Tube Diffuser
Main choice for many municipal and general industrial wastewater aeration basins. Practical cost, common replacement planning, and stable fine bubble aeration.
Silicone Tube Diffuser
Useful for selected water conditions where chemical resistance, temperature behavior, or fouling characteristics need closer review before quotation.

TPU Tube Diffuser
Optional material for projects that require a different membrane response and should be evaluated according to actual water quality and operating data.
Product Views and Connection Details
Use the tube body, end cap, clamp, and membrane surface to confirm installation direction and replacement requirements.


Application Areas
Tube diffusers are selected when the tank layout and airflow distribution make a long diffuser format more suitable.
Municipal Wastewater
Biological treatment basins, oxidation tanks, SBR systems, and aeration retrofit projects.
Industrial Wastewater
Food and beverage, textile, paper, chemical, pharmaceutical, landfill leachate, and high-strength wastewater projects.
Aquaculture and Fish Farming
Ponds or recirculating systems where dissolved oxygen, linear coverage, and maintenance access matter.
How to Choose Between Disc and Tube Diffusers
Blue Water helps compare diffuser type according to tank layout, pipe grid, airflow target, water depth, and replacement plan.
Tank Shape
Confirm length, width, water depth, and process zone.
Airflow
Check blower capacity and airflow per diffuser target.
Water Quality
Identify oil, chemicals, temperature, and fouling risk.
Material
Compare EPDM, silicone, and TPU.
Layout
Choose tube length, pipe spacing, and quantity.
Product Catalog / 产品册
Download product catalogs and parameter sheets.
Product catalogs will be added here after the electronic brochures are uploaded. For now, please contact Blue Water and we will send the latest product information by email.
Quick Project Data / 快速项目数据
Submit structured data for faster diffuser selection.
If you already have tank data, use the quick selection form below. Most items are dropdown choices, and only dimensions or notes need typing. If the project data is not final yet, you can still contact us directly and discuss the selection with our technical team.
Need Help Selecting Tube Diffusers?
Send tank dimensions, water depth, wastewater type, blower capacity, preferred material, and target diffuser length. Blue Water can help match tube diffuser material and layout direction before quotation.
