YunAir YD620 AO 3" High-Flow Mainline Air Filter for Screw Air Compressor 37.2 m³/min, 16 Bar
The YunAir YD620 AO is a premium, high-capacity mainline compressed air filter engineered to handle heavy-duty industrial air flows up to 37.2 m³/min at a working pressure of 16 Bar. Strategically installed directly after screw air compressors or refrigerated air dryers, this 3-inch connection filter acts as the critical first line of defense for your entire compressed air network.
The "AO" grade filtration technology excels at removing bulk liquid water, oil aerosols, and solid particulate matter, ensuring downstream equipment receives clean, high-quality air while significantly extending the lifespan of finer downstream filters.
Technical Specifications
- Brand: YunAir (Yun Air Technology)
- Housing Model: YD620
- Filter Element Grade: AO ( High Efficiency Coalescing)
- Port Connection Size: 3" RC Threaded
- Nominal Flow Capacity: 37.20 m³/min
- Filtration Efficiency: down to 1 Micron
- Max.Proof Pressure: 16 bar (232 psi)
- Operating Pressure: 13 bar with automatic drain
- Temperature Range: 1.5°C to 80°C
- Housing Quality Standards: ISO 9227:2006 (1000-Hour Salt Spray Test)
- Safety Factor: 5:1 Burst Pressure Certified & 100% Leak Tested
- Warranty: 15-Year Lifetime Warranty on Die-Cast Housing
Key Technical Features & Industrial Benefits
✅ High-Flow & Low Pressure Drop: Engineered specifically for massive air demands 37.2 m³/min, the internal flow-dynamic design reduces air turbulence, minimizing pressure drop to optimize energy efficiency and lower total cost of ownership (TCO).
✅ Rugged Heavy-Duty Construction: Built with a high-grade aluminum alloy housing via advanced die-casting technology. It guarantees 100% porosity-free structural integrity, delivering a 5:1 burst safety factor at a 16 Bar working pressure.
✅ 15-Year Anti-Corrosion Longevity: The filter housing undergoes an advanced electrophoretic surface treatment and passes a strict 1000-hour neutral salt spray test (ISO 9227:2006), ensuring 15 years of exceptional durability in harsh industrial environments.
✅ 1 Micron Pre-Filtration Excellence: Equipped with the high-performance L620 AO element, it reliably removes solid particles down to 1 micron and reduces remaining liquid oil/water mist down to 1.0 mg/m³ (at 21°C), fully shielding your screw compressor setup.
✅ Smart Condensate Discharge: Features an integrated float ball automatic drain valve, providing hassle-free, continuous drainage of intercepted large-volume liquids without any loss of compressed air.
Partner with YunAir for High-Flow Success
The use of coalescing air filter is essential when high-quality compressed air is required. Our breath, as well as the compressed air we use in a wide variety of industrial applications, is not clean. Those latter contain particulates and aerosols, as well as oil vapors in the case of oil-injected compressors. The contaminants in compressed air are often microscopically small, but they can have a damaging and costly impact on sensitive equipment that uses compressed air.
YunAir filter element L620 AO is made from advanced fiberglass that effectively removes pollutant meeting the air quality requirements of all versions of ISO8573-1, reducing the energy consumption, total cost of ownership and adding to your satisfaction.
Contact Yun Air Technology Today
Get in touch with Yun Air Technology's sales experts today to learn more about air filters for air compressors and why these components are so important to overall air compressor performance. Our friendly and knowledgeable team of air filter experts is available to assist you with selecting the optimal air filter for your compressors, automatic equipment, sand blasters, or color sorters. Please drop us an e-mail at info@yun-air.com. If you can not reach us by phone, please feel free to visit our website at: //www.yun-air.com.
* Request samples and detailed technical specifications.
* Learn about our comprehensive support and marketing materials.
* Elevate your product portfolio with the high-capacity leader.