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Single EPDM membrane air diffuser disc /paddle wheel aerator
Each strong EPDM (rubber) membrane is composed of up to 1000 tiny holes that release thousands of micro bubbles when compressed air inflates the disc. Energy saving design requires only 0.5 CFM of air supply for proper operation. For steep slope and deep water applications consider an aeration disc diffuser system as it provides fine bubbles from one location.
The self-cleaning flexible membrane openings prevent clogging in the dirtiest of lakes. Immersion in the muddiest of pond bottoms even where the water is dirty or brackish will not hamper the performance of the disc. Salt water or hard water or sludge thickened basins are not a problem for these powerful diffusers.
Most aerating bubbles produced with the powerful micro bubble technology are only .5 to 1.0 millimeters in diameter. The fundamental decrease in bubble size dramatically increases oxygen transfer rates. This will provide your pond with the most in aeration efficiency. The male connection is ¾” threads.
These rugged assemblies are ideal for updating and retrofitting worn-out, clogged or broken airstone type diffusers. No more airstone acid cleaning or frequent replacement necessary.
Flexible 7” or 9″ diameter membrane disc creates a strong, reliable bubble column for efficient lifting volume and aerating action.
Air Diffuser Type: Round EPDM membrane diffuser disc, 7” or 9”. CFM: 0.5 – 3 cfm for 7” disc, 0.5 – 6 cfm for 9” Bubble Size: Fine Minimum Pressure: 0.5 – 0.6 psi Technical Information :
- Self-cleaning, low maintenance construction
- Micro-bubble technology
- Five year warranty Membrane Diffusers
- Single membrane features a non-stick coating to prevent biofilm and calcium build-up
Structure:
1.Membrane:Adopted the EPDM/Silicone to melt. It can restrain the ageing effectively of the membrane, and protract the using life over 8 years.
2.Slit Hole :Adopted the "^" shaped for perforating to prevent adverse of waste water effectively and the bubble would be less than 0.3nn during aeration.
3.Base :Made by PP+FIBER GLASS , well resistance to corrosion and service long life.
Advantages:
*Flexible replacement for upgrading projects
*Multi installation for PVC,HDPE,Steel,etc.
*High oxygen transfer effciency
*Intermittent operation capability
*High resistance to corrosion
*Back flow prevention
*Quick installation and low maintenance
*Low pressure loss
*Water-stirring effect
| Item | BD007 | BD009 | BD012 |
| Size(inch) | 7 | 9 | 12 |
| Working air flow (m3/h) | 1~4 | 1~6 | 1~10 |
| Designed air flow(m3/h) | 2 | 3 | 5 |
| Oxygen transform efficiency (%) | >30 | >30 | >30 |
| Service area (m2/piece) | 0.4~0.8 | 0.6~0.9 | 0.7~1.0 |
| Bubble size(mm) | 0.8~2.1 | 0.8~2.1 | 0.8~2.1 |
| Pressure loss (kpa) | 1.5~4.3 | 1.5~4.3 | 1.5~4.3 |
| Oxygenate capability (kgO2/h) | 0.15~0.38 | 0.18~0.48 | 0.25~0.55 |
| Theoretic dynamic efficency(kgO2/kw.h) | >8.9 | >8.9 | >8.9 |
Application:
Biological treatment
Active Sludge treatment
Aquaculture treatment
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