
The Taco 4900 Series 3" Flanged Carbon Steel In-Line Air & Dirt Separator (MPN: 4903AD-125) delivers dual-action system protection to clean and optimize large-scale closed-loop hydronic heating, chilled water, and cooling tower loops.
Dual-Action Protection Matrix:
- Simultaneous Air & Sludge Removal: Micro-bubbles seamlessly adhere to the internal stainless steel PALL rings to safely exit through the top auto-vent mechanism, while heavy sand, dirt, and magnetite particles down to the smallest micro-clogs drop completely out of suspension into the bottom sump.
- ASME Section VIII Construction: Built and certified precisely to demanding ASME compliance codes, ensuring optimal long-term lifecycle performance inside rigorous municipal, federal, and institutional mechanical plants.
- System Efficiency Retention: Proactively eliminates system noises, localized rust build-up, pump-impeller erosion, and heat exchanger fouling to prevent loss of overall thermal efficiency and high energy billing waste.
System Parameters:
- Media Compatibility: Suitable for closed water or water/glycol fluid loops with up to a 50% max volumetric concentration.
- Sump Integration: Engineered with a bottom drain port to allow quick, safe blowdown flushing of captured system sludge without tearing down or breaking into lines.
| Mechanical Parameter | Factory Specification |
|---|---|
| Manufacturer | Taco Comfort Solutions |
| Series | 4900 Commercial Air & Dirt Series |
| Model Number (MPN) | 4903AD-125 |
| Connection Size & Type | 3" ANSI Flanged Connection |
| Vessel Body Material | Fabricated Carbon Steel |
| Internal Media Ring Type | Stainless Steel PALL Ring Coalescing Basket |
| Maximum Operating Pressure | 125 PSI Standard |
| Maximum Fluid Temperature | 240°F (115°C) |
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Corporate Procurement & PO Processing
Formal Purchase Orders (POs) and tax-exempt ordering are accepted for commercial contractors and institutional facilities.
Apply for Trade Account & Terms →📋 Procurement & Shipping Notice
- LTL Freight Dispatch: Heavy commercial units ship directly via insured LTL carrier with delivery coordination included.
- Project Timelines & Submittals: Need guaranteed delivery dates, formal submittals, or tax-exempt processing?
👉 Request a Commercial Quote or contact our procurement team for direct freight scheduling.