Product Description
EPDM/Silicone Microporous membrane air diffuser disc used in supplying air for breaking down of contaminant in the biological treatment process, by the high oxygen transfer efficiency. It adopts ABS engineering plastics as the main body and is covered with a special rubber EPDM or silicone microporous membrane. The micro-holes will automatically expand while the air income and close while no air comes, which avoids the blocking of the holes. A non-return design is to prevent the mixture from entering and blocking the pipeline. The incoming air does not need special filtration and intermittent supply of air does not block the holes and pipes.
Features
bubble aeration
1.Reverse folding structure.
2.Non-return design preventing liquid from flowing back into the aeration system. 3.EPDM Membrane, Anti-aging, corrosion resistance, acid and alkali resistance. 4.Very fine bubble, reducing the shearing to sludge particles.
5.Unique connector between diffuser disc and air pipeline,stronger connection, better sealing, avoiding the loosening of the connection due to the vibration.
6.More colors for choice.
Specification
Material |
ABS+EPDM |
ABS+Silicone |
Specifications |
D215 |
D270 |
D330 |
D215 |
D215 |
D330 |
Outer diameter(mm) |
215 |
270 |
330 |
215 |
270 |
270 |
Membrane diameter(mm) |
185 |
240 |
300 |
185 |
240 |
240 |
Membrane thickness(mm) |
2 |
2 |
2 |
2 |
2 |
2 |
Hole diameter(μm) |
80-100 |
80-100 |
80-100 |
80-100 |
80-100 |
80-100 |
Hole No.s |
4000 |
6500 |
9500 |
4000 |
6500 |
6500 |
Air flow range (Nm3/h) |
0-4 |
2-5 |
2-9 |
0-4 |
2-5 |
2-9 |
Average air flow at 4m (Nm3/h) |
2 |
3 |
4.25 |
2 |
3 |
4.25 |
Oxygenation capacity(KgO2/h) |
0.15-0.4 |
0.3-0.5 |
0.3-0.55 |
0.15-0.4 |
0.3-0.5 |
0.3-0.55 |
Oxygen utilization(%) |
22-40 |
31-59 |
35-59 |
22-40 |
31-59 |
35-59 |
Working depth(m) |
4-8 |
4-8 |
4-8 |
4-8 |
4-8 |
4-8 |
Service area(m3/h/pcs) |
0.3-0.65 |
0.4-0.8 |
0.5-1.0 |
0.3-0.65 |
0.4-0.8 |
0.5-1.0 |
Max. Working temperature(ºC) |
80 |
80 |
80 |
80 |
80 |
80 |
Weight(g) |
434.2 |
632.1 |
879.3 |
434.2 |
632.1 |
879.3 |
Company Profile
bubble aeration
Qiankun Environmental Protection Joint Stock Co., Ltd, located in Xinxiang, Henan province, we are specialized in wastewater treatment equipment manufacture, such as aeration system, filtering system, sludge dewatering system, DAF system and MBR system. We also offer a one-stop service for all kinds of waste water treatment project, such as designing, fabrication, installation, commissioning, and after-sale service. Qiankun is professional & experienced in pulp & paper, printing & dyeing, chemical fiber, chemicals, leather, breeding and various kinds of industries and municipal sewage treatment projects. We also gained a global sales network reaching India, Egypt, Nigeria, Indonesia, Philippines, Vietnam, Thailand, Malaysia, Russia, Ethiopia, Argentina, Myanmar, etc.