{"product_id":"cal-551006a","title":"Caleffi DISCAL 1-1\/2 Inch NPT Threaded Air Separator","description":"\u003cdiv style=\"font-family: Arial, sans-serif; font-size: 15px; color: #333333; line-height: 1.6;\"\u003e\n  \u003cp\u003e\n    The \u003cstrong\u003eCaleffi DISCAL® 551 Series (Threaded NPT Model)\u003c\/strong\u003e continuously extracts micro-bubbles of entrained air from closed hydronic heating and cooling loops. Featuring heavy-duty 1-1\/2\" female NPT threaded connections, this model easily threads directly onto rigid commercial system pipe schedules. By dropping fluid velocity inside its specially shaped brass body, it allows minuscule air pockets to coalesce, break free from the system media, and vent automatically into the atmosphere.\n  \u003c\/p\u003e\n  \u003cp style=\"margin-top: 15px;\"\u003e\n    Equipped with a glass-reinforced nylon internal element, the DISCAL creates a high-performance swirling matrix that captures 100% of trapped system air down to the micro-bubble level. Eliminating oxygen loop-circulation provides premium component protection—preventing mechanical pump noise, reducing terminal unit corrosion, and optimizing boiler plant heat transfer efficiency.\n  \u003c\/p\u003e\n\u003c\/div\u003e","brand":"Caleffi","offers":[{"title":"Default Title","offer_id":42839826759774,"sku":"CAL-551006A-NPT","price":182.81,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/aleffi-discal-1-half-inch-brass-air-separator.jpg?v=1781118199","url":"https:\/\/nationalboilersupply.com\/products\/cal-551006a","provider":"National Boiler Supply","version":"1.0","type":"link"}