{"product_id":"armstrong-116487-132-h-65-1-cast-iron-1hp-1ph-pump","title":"Armstrong 116487-132 H-65-1 Cast Iron 1HP 1PH Pump","description":"\u003cp\u003eMaintain efficient fluid circulation in your hydronic heating or cooling system with the Armstrong H-65-1, part number \u003cstrong\u003e116487-132\u003c\/strong\u003e. Engineered for consistent flow and durability, this 1HP, 1PH cast iron circulator pump is a robust solution for demanding commercial and residential HVAC applications.\u003c\/p\u003e\u003cp\u003eThis pump utilizes a high-efficiency motor and a rugged cast iron casing to manage thermal expansion and system pressure effectively. Its precision-engineered impeller design ensures smooth operation and quiet performance, providing reliable heat distribution throughout your piping loop.\u003c\/p\u003e\u003ch4\u003eKey System Performance Baselines:\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor Output:\u003c\/strong\u003e 1HP capacity for high-demand circulation requirements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectrical Efficiency:\u003c\/strong\u003e Optimized for standard 1PH power sources.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Construction:\u003c\/strong\u003e Heavy-duty cast iron body designed for long-term corrosion resistance.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e⚠️ \u003cstrong\u003eApplication Profile:\u003c\/strong\u003e Ideal for replacement in existing hydronic heating systems, radiant floor loops, and secondary pumping circuits requiring consistent, single-phase 1HP performance.\u003c\/p\u003e","brand":"Armstrong","offers":[{"title":"Default Title","offer_id":43124050526302,"sku":"116487-132","price":3667.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/116487_132_image_f3e8ab32-9784-49da-9b72-20e95f31618f.jpg?v=1786030436","url":"https:\/\/nationalboilersupply.com\/products\/armstrong-116487-132-h-65-1-cast-iron-1hp-1ph-pump","provider":"National Boiler Supply","version":"1.0","type":"link"}