{"product_id":"armstrong-816009-721k-1-1-2-bronze-flange-set","title":"Armstrong 816009-721K 1-1\/2\" Bronze Flange Set","description":"\u003cp\u003eThis durable bronze flange set provides a reliable connection point for hydronic circulators and inline pumps. The \u003cstrong\u003eArmstrong 816009-721K\u003c\/strong\u003e is engineered to maintain a secure seal under varying temperature and pressure conditions found in residential and commercial heating loops. Using the correct \u003cstrong\u003e816009-721K\u003c\/strong\u003e flange ensures hardware compatibility and minimizes the risk of system leaks during routine maintenance.\u003c\/p\u003e\u003cp\u003eFlange sets function as the interface between the pump and the piping system, allowing for simplified removal and installation of pumps without needing to cut or modify existing pipe work. The bronze construction offers superior corrosion resistance in water-based systems, ensuring longevity and consistent thermal transfer efficiency over the life of the installation.\u003c\/p\u003e\u003ch4\u003eKey System Performance Baselines:\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Construction:\u003c\/strong\u003e High-grade bronze material resists oxidation and mineral buildup.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecise Fitment:\u003c\/strong\u003e Engineered specifically for 1-1\/2 inch pump connections to ensure alignment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem Integrity:\u003c\/strong\u003e Designed to provide a high-pressure seal preventing cavitation and fluid loss.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e⚠️ \u003cstrong\u003eApplication Profile:\u003c\/strong\u003e Ideal for hydronic heating systems, radiant floor loops, domestic hot water recirculation lines, and chilled water cooling loops.\u003c\/p\u003e","brand":"Armstrong","offers":[{"title":"Default Title","offer_id":43133722263646,"sku":"816009-721K","price":84.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/816009_721K_image_050c56e2-d87b-4402-8a7c-046c398b220e.png?v=1786108679","url":"https:\/\/nationalboilersupply.com\/products\/armstrong-816009-721k-1-1-2-bronze-flange-set","provider":"National Boiler Supply","version":"1.0","type":"link"}