Introducing the SSI Aeration AFDS110 Satellite Diffuser: Quantum Leaps in Aeration Efficiency
The Efficiency Breakthrough: Industry-Leading Oxygen Transfer (SOTE)
In wastewater treatment, aeration typically consumes the lion’s share of a facility’s energy budget. The AFDS110 directly addresses this challenge by delivering exceptional Standard Oxygen Transfer Efficiency (SOTE).
- Peak SOTE at Optimal Airflow: The system is meticulously optimized for an efficient airflow range of 1.5 to 2.5 SCFM per unit. According to certified engineering curves, the AFDS110 achieves its highest transfer rates—reaching an extraordinary to over SOTE per foot of submergence—within this precise operational window.
- Minimized Headloss: By pairing high oxygen transfer with an incredibly low headloss profile (maintaining a mere 15 to 25 inches W.G. across its primary operating range), the AFDS110 ensures that blowers do not have to work over-time to push air through the system. This directly translates to immediate, compounding energy savings for treatment plants.
Unrivaled Product Capabilities & Upgrades
- Patented Advanced Membrane Technology: The AFDS110 utilizes +/- 6,000 precision slits across an active surface area of per unit. For high-demand or aggressive industrial environments, we offer an intelligent upgrade to PEEK-coated membranes. Unlike standard uncoated rubber membranes that suffer from hardening, shrinking, or plasticizer extraction, the PEEK option resists fouling and eliminates structural “creep,” ensuring stable Dynamic Wastewater Pressure (DWP) and consistent efficiency over a long operational lifespan.
- Heavy-Duty Piping System Integrity: System longevity is backed by a major structural upgrade—SSI’s integrated piping system features thicker walls than industry standards. Combined with heavy-duty double-rod support stands providing two anchors per support location, the system delivers twice the resistance against heavy thermal expansion and destructive hydraulic loading.
- Tailored Configuration & Fixed Grids: To maximize the efficiency gains of the satellite design, we provide a comprehensive range of piping materials (including PVC, CPVC, PP, and Stainless Steel) and mounting options like pre-assembled PODS or custom fixed grids.
The Competitive Advantage
Traditional disc diffusers often suffer from poor air distribution, rapid fouling, and localized dead-zones if operated outside narrow bands. The AFDS110’s satellite geometric layout splits the airflow uniformly across decentralized pods. This design creates a tighter, more uniform fine-bubble curtain across the entire floor geometry of the tank. By maximizing bubble-to-water contact time and preventing coalescing, the AFDS110 extracts significantly more oxygen out of every cubic foot of air than single-disc alternatives, allowing plants to downsize blower runtime and realize a drastically lower Total Cost of Ownership.
Technical Snapshot (Per Unit):
- Average Operating Range: 0.45 – 2.75 SCFM (0.8–4.7 Sm3/hr)
- Peak Air Flow Capacity: 3.5 SCFM (6.0 Sm3/hr)
- Active Surface Area: 0.41 ft2 (0.038 m2)
- Orifice Size: 1/4″ (6mm)
With our complete in-house design services—including full 3D modeling, biological mixing calculations, and hydraulic studies—our team is ready to seamlessly integrate the SSI AFDS110 into your next facility upgrade or greenfield design

