Products Description

A membrane tube diffuser, also widely known as a fine bubble membrane tube diffuser, is a high-efficiency aeration device designed for wastewater treatment aerobic tanks. It replaces traditional coarse bubble aerators with an elastic membrane tube structure to produce ultra-fine, uniform air bubbles. We primarily offer two main types: EPDM tubular diffusers for standard wastewater and PTFE tubular diffusers for harsh, corrosive wastewater conditions.
Core Structure & Working Principle
The entire diffuser consists of a rigid support pipe and a flexible elastic membrane sleeve. The core performance depends on its precision membrane structure and micro-hole opening design.
When the air blower starts, compressed air fills the inner pipe and slightly expands the rubber/PTFE membrane. Thousands of pre-slit micro-openings on the membrane surface open instantly, releasing dense fine bubbles along the entire tube length. This realizes full-range uniform air distribution and greatly improves oxygen transfer efficiency.

When the blower stops working, air pressure disappears immediately. The elastic membrane automatically shrinks and resets, closing all micro-tight slits tightly. This unique one-way check structure effectively prevents sewage backflow, sludge infiltration and pipeline blockage - solving the biggest pain point of traditional aerators.
Key Advantages of Fine Bubble Membrane Tube Diffuser
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Uniform fine bubble aeration: Precision micro-slit opening technology ensures consistent bubble density without dead aeration zones.
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Automatic check & anti-clogging: Holes close tightly when out of service, no sludge backflow, low maintenance rate.
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Dual material adaptability: EPDM tube diffuser features aging resistance and cost performance for municipal and general industrial sewage; PTFE tube diffuser owns extreme corrosion resistance for chemical, acidic and alkaline wastewater.
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Long service life & stable performance: Integral tube membrane structure avoids local air leakage and deformation.

Common Application Scenarios
The fine bubble membrane tube diffuser is the most popular aeration solution for aerobic biochemical treatment. It is widely used in municipal wastewater treatment plants, printing and dyeing factories, food processing plants, pharmaceutical factories, chemical industry wastewater projects, and river water ecological restoration.

Technical Parameters
| Material | Model | Inner tube diameter (mm) | Membrane diameter (mm) | Membrane thickness (mm) | Bubble diameters (mm) | Air flow range (Nm³/h) | Oxygen utilization at 5m (%) | Max. Working temperature |
|---|---|---|---|---|---|---|---|---|
| ABS+EPDM | D65-500 | 63 | 65 | 2 | 0.8-2 | 1.7-6.8 | 23-32 | 80 |
| ABS+EPDM | D65-750 | 63 | 65 | 2 | 0.8-2 | 3.4-17 | 23-32 | 80 |
| ABS+EPDM | D90-1000 | 88 | 90 | 2 | 0.8-2 | 6.5-32.6 | 23-32 | 80 |
| ABS+Silicone | D65-500 | 63 | 65 | 2 | 0.8-2 | 1.7-6.8 | 23-32 | 100 |
| ABS+Silicone | D65-750 | 63 | 65 | 2 | 0.8-2 | 3.4-13.6 | 23-32 | 100 |
| ABS+Silicone | D65-1000 | 63 | 65 | 2 | 0.8-2 | 3.4-17 | 23-32 | 100 |
| ABS+Silicone | D90-1000 | 88 | 90 | 2 | 0.8-2 | 6.5-32.6 | 23-32 | 100 |
Products Description
VIVA-MIX is a sub-brand of Henan ECO Environmental Equipment CO.,Ltd.
Our factory located in a famous historic city--- Nanjing, Jiangsu Province, specialize in manufacturing submersible mixers , vertical mixers and aeration mechanical & devices for wastewater treatment applications. Guided by our corporate philosophy of "Technology Leads, Quality Survival," we continually study and research cutting-edge technologies and innovative processes from top domestic and international products. By integrating these advancements with working site experiences, we have developed a unique series of products that stand out in the wastewater treatment field.
Our core product range includes energy-saving submersible mixers& recirculation pumps, standard submersible mixers & recirculation pumps , mixers designed specifically for MBBR fillers, hyperbolic mixer& other paddle type vertical mixers, submersible(jet) aerators and various membrane type air diffuser along with installation kits. All our products have been verified by authoritative national testing agencies. Over the past decade, our equipment has been widely deployed in municipal sewage treatment plants and industrial wastewater projects across various sectors, proving its durability and market reliability. We have exported our product to to over 100 countries and regions and enjoy a good reputation among our customers.
To date, our company has been awarded four invention patents and twenty-five utility model patents, with certifications of ISO quality management system, ISO environmental management system, ISO occupational health and safety management system.
Dedicated to continuous self-improvement and product optimization, We looking forward to walking the path of environmental protection with you!
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