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NTBE-DIFF-DISC · Circular EPDM / Silicone membrane disc diffuser
Disc Diffuser (Fine Bubble Aeration)
A Disc Diffuser is a circular fine-bubble diffuser designed to provide uniform air distribution and high oxygen transfer efficiency in biological treatment systems. It features a flexible EPDM or silicone membrane with precision slits that release fine bubbles when air is supplied.
Key Features
- ✓Circular fine-bubble diffuser — uniform radial air distribution
- ✓EPDM / Silicone / PTFE-coated EPDM membrane with precision slits
- ✓PP / ABS support base
- ✓9" (230 mm) or 12" (300 mm) disc diameter
- ✓Fine bubble (1–3 mm) for high oxygen transfer
- ✓Oxygen transfer efficiency up to 25–35%
- ✓Low operating pressure (0.1–0.5 bar)
- ✓Easy membrane replacement
Applications
STPETPSBRMBBREqualization tanksAeration basins
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Technical Specifications
| Membrane Material | EPDM / Silicone / PTFE-coated EPDM |
| Disc Diameter | 9" (230 mm) or 12" (300 mm) |
| Support Material | PP / ABS |
| Bubble Size | Fine bubble (1–3 mm) |
| Air Flow Rate | 1 – 8 Nm³/hr |
| Oxygen Transfer Efficiency | Up to 25–35% |
| Operating Pressure | 0.1 – 0.5 bar |
| Connection Size | ¾" NPT or BSP |