{"product_id":"armstrong-116439mf-132-h-53-1-cast-iron-circulator-pump-1-2hp-1ph","title":"Armstrong 116439MF-132 H-53-1 Cast Iron Circulator Pump 1\/2HP 1PH","description":"\u003cp\u003eMaintain optimal flow and system pressure in your hydronic heating or cooling application with the high-performance \u003cstrong\u003eArmstrong 116439MF-132\u003c\/strong\u003e H-53-1 circulator pump. Engineered for durability and consistent heat distribution, this 1\/2HP, 1PH unit ensures reliable fluid circulation in residential and light commercial settings, helping your boiler system operate at peak efficiency.\u003c\/p\u003e\u003cp\u003eThis pump utilizes a robust cast iron casing and precision-balanced impeller assembly to minimize vibration and reduce operational noise. Designed for longevity, the mechanical seal architecture prevents leaks while handling the thermal stresses inherent in closed-loop hydronic heating, providing long-term reliability for your facility.\u003c\/p\u003e\u003ch4\u003eKey System Performance Baselines:\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor Output:\u003c\/strong\u003e Robust 1\/2HP power rating for consistent flow rates.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectrical Efficiency:\u003c\/strong\u003e Single-phase operation compatible with standard electrical configurations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction Quality:\u003c\/strong\u003e Durable cast iron body engineered to withstand high-pressure hydronic environments.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e⚠️ \u003cstrong\u003eApplication Profile:\u003c\/strong\u003e Ideal for use in hydronic space heating, radiant floor heating zones, and secondary loop circulation in residential or commercial mechanical rooms.\u003c\/p\u003e","brand":"Armstrong","offers":[{"title":"Default Title","offer_id":43124031684702,"sku":"116439MF-132","price":2369.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/116439MF_132_image_e23beec1-f32c-4d3a-8f31-de8052393674.png?v=1786029509","url":"https:\/\/nationalboilersupply.com\/products\/armstrong-116439mf-132-h-53-1-cast-iron-circulator-pump-1-2hp-1ph","provider":"National Boiler Supply","version":"1.0","type":"link"}