{"product_id":"armstrong-106285mf-136a-s-57-3-cast-iron-pump-3-4-hp-3-phase","title":"Armstrong 106285MF-136A S-57-3 Cast Iron Pump 3\/4 HP 3-Phase","description":"\u003cp\u003eDesigned to provide robust circulation in commercial heating and cooling loops, the Armstrong S‑57‑3 cast‑iron pump ensures reliable flow. Featuring the **106285MF-136A** model designation, this 3\/4 HP, 3‑phase unit delivers consistent performance for demanding applications.\u003c\/p\u003e\u003cp\u003eThe pump’s cast‑iron body houses a bronze‑fitted impeller that creates steady hydraulic pressure while minimizing wear. Its triple‑phase motor reduces vibration, and the standard 2‑in. flanged connections simplify integration into existing pipework.\u003c\/p\u003e\u003ch4\u003eKey System Performance Baselines:\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlow Capacity:\u003c\/strong\u003e Up to 30 GPM at 30 psi, supporting medium‑size hydronic loops.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead Rise:\u003c\/strong\u003e Maximum of 40 ft, ensuring adequate pressure across the system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Efficiency:\u003c\/strong\u003e 3\/4 HP motor meets IEC efficiency standards for reduced energy use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurability:\u003c\/strong\u003e Cast‑iron construction and bronze‑fitted components resist corrosion and extend service life.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e⚠️ \u003cstrong\u003eApplication Profile:\u003c\/strong\u003e Ideal for office building boilers, hotel hot‑water recirculation, industrial process heating, and large‑scale HVAC chillers.\u003c\/p\u003e","brand":"Armstrong","offers":[{"title":"Default Title","offer_id":43118599864414,"sku":"106285MF-136A","price":3351.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/106285MF_136A_image_e34249a9-bd40-45b1-892f-d6c69268101c.png?v=1785977632","url":"https:\/\/nationalboilersupply.com\/products\/armstrong-106285mf-136a-s-57-3-cast-iron-pump-3-4-hp-3-phase","provider":"National Boiler Supply","version":"1.0","type":"link"}