{"product_id":"bell-gossett-p56850-3-938-pump-impeller-for-1522-1-1-2aab","title":"Bell \u0026 Gossett P56850 3.938\" Pump Impeller for 1522 1-1\/2AAB","description":"\u003cp\u003eRestore peak hydraulic efficiency to your hydronic heating or cooling system with the genuine replacement Bell \u0026amp; Gossett \u003cstrong\u003eP56850\u003c\/strong\u003e pump impeller. Specifically engineered for the 1522 1-1\/2AAB series, this precision-balanced component ensures consistent fluid circulation and minimizes system vibration. By replacing a worn or damaged impeller, you maintain the intended pressure profiles of your circulation loop, effectively extending the lifespan of your pump assembly.\u003c\/p\u003e\u003cp\u003eThe impeller functions as the kinetic heart of the centrifugal pump, converting rotational energy from the motor shaft into fluid velocity. As the impeller blades rotate within the pump volute, they create a pressure differential that pulls fluid into the center of the pump and discharges it outward. Over time, cavitation, debris, or chemical corrosion can degrade blade geometry; installing this factory-spec replacement restores the original flow characteristics and system head performance.\u003c\/p\u003e\u003ch4\u003eKey System Performance Baselines:\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Integrity:\u003c\/strong\u003e Factory-specified casting for maximum durability under high-temperature operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDynamic Balance:\u003c\/strong\u003e Precision manufacturing to reduce mechanical stress on pump seals and bearings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHydraulic Compatibility:\u003c\/strong\u003e Engineered for seamless integration with 1522 series pump housings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEfficiency Restoration:\u003c\/strong\u003e Returns system flow rates to original OEM specifications.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e⚠️ \u003cstrong\u003eApplication Profile:\u003c\/strong\u003e Primarily utilized in commercial and residential hydronic heating, industrial fluid transfer, and chilled water circulation systems requiring the 3.938-inch impeller diameter for the 1-1\/2AAB pump model.\u003c\/p\u003e","brand":"Bell \u0026 Gossett","offers":[{"title":"Default Title","offer_id":43136886210654,"sku":"P56850","price":824.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/P56850_image_61cb4840-ffe1-45b1-93ba-c28f01e11d93.png?v=1786153736","url":"https:\/\/nationalboilersupply.com\/products\/bell-gossett-p56850-3-938-pump-impeller-for-1522-1-1-2aab","provider":"National Boiler Supply","version":"1.0","type":"link"}