{"product_id":"armstrong-110223-306-astro-230ss-circulating-pump","title":"Armstrong 110223-306 Astro 230SS Circulating Pump","description":"\u003cp\u003eDesigned to maintain consistent water flow in residential and commercial heating loops, the Armstrong Astro 230SS circulating pump delivers reliable performance. The **110223-306** model fits standard connections and is engineered for continuous operation in demanding HVAC and hydronic applications.\u003c\/p\u003e\n\u003cp\u003eThe pump features a sealed‑bearing motor coupled with a precision‑balanced impeller, allowing water to be moved efficiently with minimal friction loss. Its stainless‑steel construction provides durability while the integrated mechanical seal protects against leaks.\u003c\/p\u003e\n\u003ch4\u003eKey System Performance Baselines:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlow Rate:\u003c\/strong\u003e Up to 30 GPM at 30 psi, suitable for typical heating circuits.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Consumption:\u003c\/strong\u003e 45 W operating power, ensuring energy‑efficient service.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Pressure:\u003c\/strong\u003e Maximum 60 psi, delivering stable pressure across the system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e Functional from 35 °F to 180 °F, covering most residential and light‑commercial applications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e⚠️ \u003cstrong\u003eApplication Profile:\u003c\/strong\u003e Ideal for boiler recirculation loops, domestic hot‑water systems, and commercial HVAC chillers where dependable flow is critical.\u003c\/p\u003e","brand":"Armstrong","offers":[{"title":"Default Title","offer_id":43123852410974,"sku":"110223-306","price":434.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/110223_306_image_5d6a7a32-123c-4d53-af70-111b3d6e23e0.png?v=1786020238","url":"https:\/\/nationalboilersupply.com\/products\/armstrong-110223-306-astro-230ss-circulating-pump","provider":"National Boiler Supply","version":"1.0","type":"link"}