{"product_id":"caleffi-520519ac-anglemix-3-way-thermostatic-mixing-valve-3-4-sweat-union-with-inlet-check-valves-cv-2","title":"Caleffi 520519AC AngleMix 3-Way Thermostatic Mixing Valve 3\/4\" Sweat Union with Inlet Check Valves, Cv 2","description":"\u003cp\u003eThe Caleffi 520519AC is an AngleMix 3-way thermostatic mixing valve with 3\/4\" sweat union connections and inlet check valves. It mixes supply and return water to deliver a controlled outlet temperature to the heating circuit.\u003c\/p\u003e\u003cp\u003eAngleMix valves are 3-way thermostatic mixing valves for hydronic heating systems. They blend hot supply water with cooler return water to hold a steady, adjustable supply temperature for low-temperature circuits such as radiant floor heating. The angle body pattern simplifies piping on near-boiler and manifold installations. The built-in check valves on the inlets help prevent unwanted thermosiphoning and cross-flow between the hot and cold ports.\u003c\/p\u003e\u003cp\u003eBefore ordering, confirm your piping is 3\/4\" and suited to sweat connections, and that a flow capacity of Cv 2 matches your circuit's design flow. This valve is for hydronic heating, not for potable hot water tempering.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Caleffi\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part #:\u003c\/strong\u003e 520519AC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e AngleMix (520 Series)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e 3-Way Thermostatic Mixing Valve, Angle Pattern\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 3\/4\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnection:\u003c\/strong\u003e 3\/4\" sweat (copper) union x sweat union\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlow Capacity (Cv):\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Brass\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCheck Valves:\u003c\/strong\u003e Inlet check valves\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 8016615613988\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Mixing Valve - Angled\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDocuments\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/res.cloudinary.com\/dzhpkjoqj\/Caleffi\/520519AC_CALE-520519AC_8016615613988_TechB.pdf\" target=\"_blank\" rel=\"noopener\"\u003eTechnical Data Sheet\u003c\/a\u003e (PDF)\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/res.cloudinary.com\/dzhpkjoqj\/Caleffi\/520519AC_CALE-520519AC_8016615613988_Inst.pdf\" target=\"_blank\" rel=\"noopener\"\u003eInstallation \u0026amp; Operation Manual\u003c\/a\u003e (PDF)\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/res.cloudinary.com\/dzhpkjoqj\/Caleffi\/520519AC_CALE-520519AC_8016615613988_Sub.pdf\" target=\"_blank\" rel=\"noopener\"\u003eSubmittal Sheet\u003c\/a\u003e (PDF)\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/res.cloudinary.com\/dzhpkjoqj\/Caleffi\/520519AC_CALE-520519AC_8016615613988_Sell.pdf\" target=\"_blank\" rel=\"noopener\"\u003eProduct Brochure\u003c\/a\u003e (PDF)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSee also: \u003ca href=\"\/collections\/mixing-valves\"\u003emixing valve - angled\u003c\/a\u003e, \u003ca href=\"\/collections\/caleffi-north-america\"\u003eall Caleffi products\u003c\/a\u003e.\u003c\/p\u003e","brand":"Caleffi","offers":[{"title":"Default Title","offer_id":50517455372391,"sku":"CALE-520519AC","price":280.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0651\/2253\/3479\/files\/520516A_348f94ad-e3e2-4f82-9320-fc37b2e7cfec.jpg?v=1792425135","url":"https:\/\/www.thehousesupplier.com\/products\/caleffi-520519ac-anglemix-3-way-thermostatic-mixing-valve-3-4-sweat-union-with-inlet-check-valves-cv-2","provider":"The House Supplier","version":"1.0","type":"link"}