{"product_id":"taco-006-zf4-1-cast-iron-priority-zoning-circulator-1-40-hp","title":"Taco 006-ZF4-1 Cast Iron Priority Zoning Circulator 1\/40 HP","description":"\u003cp\u003eThe Cast Iron Priority Zoning Circulator delivers reliable flow control for multi‑zone hydronic heating systems, ensuring each zone receives the right amount of heat when needed. The \u003cstrong\u003e006‑ZF4‑1\u003c\/strong\u003e model integrates a durable cast‑iron body with a 1\/40 HP motor to provide consistent performance in residential and light‑commercial applications.\u003c\/p\u003e\u003cp\u003eIt utilizes a priority‑zone valve design that routes water through the primary zone first, then automatically supplies secondary zones once the primary demand is met, maximizing efficiency and reducing pump cycling.\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 ft head.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Pressure:\u003c\/strong\u003e Designed for 0‑200 psi system pressure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnergy Efficiency:\u003c\/strong\u003e Low‑wattage motor reduces electricity use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurability:\u003c\/strong\u003e Cast‑iron construction resists corrosion and wear.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation Flexibility:\u003c\/strong\u003e Threaded 1‑inch inlet\/outlet for easy retrofit.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e⚠️ \u003cstrong\u003eApplication Profile:\u003c\/strong\u003e Ideal for residential boiler zones, add‑on heat‑pump loops, small commercial steam‑less heating, and retrofit projects requiring reliable zone sequencing.\u003c\/p\u003e","brand":"Taco","offers":[{"title":"Default Title","offer_id":43112604762206,"sku":"006-ZF4-1","price":508.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/006_ZF4_1_image_93cbee20-0f36-4133-b50a-aa7750de7e59.png?v=1785942679","url":"https:\/\/nationalboilersupply.com\/products\/taco-006-zf4-1-cast-iron-priority-zoning-circulator-1-40-hp","provider":"National Boiler Supply","version":"1.0","type":"link"}