{"product_id":"taco-4903ad-125-4900-series-flanged-air-and-dirt-separator","title":"Taco 4903AD-125 4900 Series Flanged Air and Dirt Separator","description":"\u003cp\u003eMaintaining clean, air-free hydronic fluid is essential for peak system efficiency, and the \u003cstrong\u003e4903AD-125\u003c\/strong\u003e is engineered to deliver exactly that. As a primary component of the Taco 4900 Series, this 3-inch flanged air and dirt separator utilizes advanced coalescing technology to eliminate both micro-bubbles and suspended debris from your commercial HVAC system.\u003c\/p\u003e\u003cp\u003eThe unit features a stainless steel PALL ring coalescing medium that provides a massive surface area for air and dirt particles to strike and separate from the fluid stream. The captured air is automatically vented through the top, while the dirt is sequestered into the lower collection chamber, which can be easily flushed during routine maintenance to prevent blockages or noise issues.\u003c\/p\u003e\u003ch4\u003eKey System Performance Baselines:\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnhanced Separation:\u003c\/strong\u003e Effectively removes micro-bubbles and sediment particles simultaneously.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReduced Maintenance:\u003c\/strong\u003e Minimizes corrosion and component wear by protecting circulating pumps and valves.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnergy Efficiency:\u003c\/strong\u003e Improves heat transfer by removing insulating air pockets from the fluid loop.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Construction:\u003c\/strong\u003e Engineered with high-quality flanged steel for consistent performance at 125 PSI.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e⚠️ \u003cstrong\u003eApplication Profile:\u003c\/strong\u003e Ideal for large-scale hydronic heating and chilled water systems, commercial office buildings, multi-family residential complexes, and industrial process cooling loops.\u003c\/p\u003e","brand":"Taco","offers":[{"title":"Default Title","offer_id":43129796624478,"sku":"4903AD-125","price":3618.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/4903AD_125_image_823dae75-2d02-4f43-8f8a-17e0b89a42e8.png?v=1786084791","url":"https:\/\/nationalboilersupply.com\/products\/taco-4903ad-125-4900-series-flanged-air-and-dirt-separator","provider":"National Boiler Supply","version":"1.0","type":"link"}