Keeping Big Industry Moving: Global Applications of the High-Flow YunAir YD620 AO Main Line Filter
In large-scale industrial manufacturing, compressed air is often referred to as the "fourth utility." However, raw compressed air generated by heavy-duty compressors is heavily contaminated with atmospheric dust, condensed water, and aerosolized lubricants. Without high-efficiency treatment, this destructive mixture travels through pipelines, corroding infrastructure, jamming automated valves, and ruining end-product quality.
The YunAir YD620 AO Coalescing Line Filter is specifically engineered to solve this vulnerability in high-capacity air systems. Featuring a 3-inch port connection and an exceptional flow capacity of 37.2 m³/min (high-capacity volume), this 1 micron main line filter serves as the protective backbone across several energy-intensive global industries.
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.
Technical Specifications
- Brand: YunAir (Yun Air Technology)
- Housing Model: YD620
- Filter Element Grade: AA ( 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
Critical Application:
1. Heavy Automotive Assembly & Precision Paint Lines
Modern automotive assembly plants consume massive amounts of compressed air to power everything from heavy-duty robotic welding arms to precise pneumatic tools. However, the most critical zone is the paint shop.
• The Application: The YD620 AO is installed as the primary mainline filter, directly filtering air feeding the painting lines.
• The Value: In high-volume spray painting, even a microscopic droplet of oil or water can cause surface defects like fish-eyes, blistering, or craters. By providing reliable 1-micron coalescing filtration, the YD620 AO eliminates rework costs, ensuring a flawless, showroom-quality finish on every vehicle.
2. Main Compressor Rooms & Central Air Infrastructure
In medium-to-large manufacturing hubs, central air stations utilize heavy screw air compressors 200 kW / 270 HP.
• The Application: Positioned immediately downstream of the air receiver tank and directly upstream of refrigerated or desiccant air dryers.
• The Value: Serving as the "First Line of Defense," the YD620 AO removes bulk liquid water and concentrated oil slugs before they hit downstream dryers. This prevents oil fouling on the dryer's heat exchangers, maintaining the overall system's thermal efficiency and preventing expensive desiccant contamination.
3. Bulk Powder Handling & Cement Manufacturing
Industries handling raw materials—such as cement plants, glass factories, and chemical processing facilities—rely on dense-phase pneumatic conveying to transport tons of dry powders through factory pipelines.
• The Application: Providing continuous, large-volume dry and clean air to fluidize and push bulk materials through long distances.
• The Value: If moisture or oil vapors bypass filtration, the raw powders absorb the liquid, causing the materials to clump together and cake the inside of the transport pipes. The YD620 AO's high-efficiency water separation ensures that material conveying remains smooth, continuous, and entirely blockage-free.
4. Automated Packaging & High-Volume Glass/PET Blow Molding
High-speed packaging, automated sorting lines, and PET bottle blowing industries operate around the clock with strict cycle times. Pneumatic cylinders and directional control valves fire thousands of times per hour.
• The Application: Mainline air purification protecting intricate manifold systems and high-speed pneumatic actuators.
• The Value: Abrasive pipe scale or sticky oil sludge will quickly cause pneumatic seals to fail and valves to stick, resulting in sudden, expensive factory shutdowns. The YD620 AO keeps these high-speed lines running efficiently by ensuring clean air delivery, vastly reducing unexpected maintenance downtime and extending machinery lifespan.
Contact Yun Air Technology Today
Get in touch with Yun Air Technology's sales experts today to learn more about Coalescing 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.
E-mail: info@yun-air.com
Mobile: +86-1501366 4809