Fine Bubble Tubular Diffuser

Fine Bubble Tubular Diffusers are used in aerobic biological treatment systems where high oxygen transfer efficiency and uniform mixing are required. In STPs and ETPs, they are installed in aeration tanks, equalization tanks, and MBBR/ASP reactors to maintain optimal dissolved oxygen levels for microbial activity. The fine bubbles increase air–water contact time, which directly improves BOD and COD removal efficiency. Compared to coarse aeration, fine bubble diffusion reduces blower horsepower and operating costs. This makes tubular diffusers a practical choice for continuous-duty applications where energy efficiency, stable performance, and long-term reliability are essential.

Membrane MOC & Typical Use Case:
• EPDM: Suitable for municipal STPs and domestic wastewater with stable operating conditions and moderate chemical exposure
• Silicone: Ideal for industrial ETPs with higher temperatures, oil content, or aggressive chemicals
• PU (Polyurethane): Preferred for applications with higher abrasion, fouling tendency, or fluctuating load conditions

AIRFIN Quality:
AIRFIN Fine Bubble Tubular Diffusers are designed with a strong diffuser body and precision-perforated membranes to deliver uniform air distribution across the tank floor. The membranes are selected based on operating conditions to ensure flexibility, tear resistance, and long service life. Low pressure drop design reduces blower energy consumption while maintaining consistent oxygen transfer efficiency over time. Strict quality control during manufacturing ensures dimensional accuracy, leak-free sealing, and dependable field performance. AIRFIN diffusers are built to operate reliably in continuous wastewater treatment environments with minimal maintenance and stable long-term output.

Engineered for efficient aeration, built for long-term performance.