{"product_id":"caleffi-6686i5s1a-in-twistflow-inverted-manifold-9-loops","title":"Caleffi 6686I5S1A-IN Twistflow Inverted Manifold 9 Loops","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe CALEFFI 6686I5S1A-IN is a 9-loop TwistFlow inverted distribution manifold designed for hydronic radiant panel heating systems. It features a built-in temperature gauge and 1-inch NPT inlet ball valves for straightforward integration into radiant floor heating supply and return lines. The manifold is rated to a maximum working pressure of 150 psi and a maximum operating temperature of 180 degrees F, with a peak temperature tolerance of 200 degrees F. Each circuit outlet is sized at 3\/4 inch, with a loop Cv of 1.23 across the combined supply and return ports. Licensed hydronic or plumbing contractors typically specify and install this manifold in residential and light commercial radiant floor systems.\u003c\/p\u003e\n\u003cp\u003eThis manifold is suited for radiant floor heating applications where precise, balanced flow distribution across multiple circuits is required. The inverted configuration positions supply and return headers in a compact arrangement that simplifies rough-in in mechanical rooms or utility spaces. The integrated temperature gauge provides at-a-glance monitoring of fluid temperature at the manifold station. Compatible media includes water or glycol solutions up to 50 percent concentration, making it appropriate for systems in freeze-prone climates. The 9-loop configuration supports larger zone layouts common in residential new construction and whole-home radiant retrofit projects.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e9-loop inverted manifold design for radiant floor heating distribution\u003c\/li\u003e\n  \u003cli\u003e1-inch NPT inlet ball valves for supply and return connections\u003c\/li\u003e\n  \u003cli\u003e3\/4-inch outlets with 2-inch center-to-center spacing\u003c\/li\u003e\n  \u003cli\u003eLoop Cv of 1.23 (combined supply and return ports) for balanced flow\u003c\/li\u003e\n  \u003cli\u003eBuilt-in temperature gauge for on-manifold fluid monitoring\u003c\/li\u003e\n  \u003cli\u003eAccepts water or glycol up to 50 percent concentration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in hydronic radiant panel heating systems requiring a 9-circuit distribution manifold with a 1-inch supply inlet and 3\/4-inch loop outlets. Compatible with water or glycol-based heating fluid at concentrations up to 50 percent.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a licensed plumber or hydronic heating contractor in accordance with applicable local mechanical codes and the International Plumbing Code. Shut down the heating system and relieve system pressure before making any connections to the manifold. Ensure all loop circuits are properly purged of air after installation using the manifold vent ports before returning the system to service. Do not exceed the rated working pressure of 150 psi or the maximum temperature of 180 degrees F during normal operation.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Loops\u003c\/strong\u003e: 9\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSupply Inlet Size\u003c\/strong\u003e: 1 inch NPT\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutlet Size\u003c\/strong\u003e: 3\/4 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutlet Center Distance\u003c\/strong\u003e: 2 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLoop Cv\u003c\/strong\u003e: 1.23 (combined supply and return ports)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Working Pressure\u003c\/strong\u003e: 150 psi\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Operating Temperature\u003c\/strong\u003e: 180 degrees F (82 degrees C)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Peak Temperature\u003c\/strong\u003e: 200 degrees F (93 degrees C)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatible Media\u003c\/strong\u003e: Water or glycol up to 50 percent concentration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: CALEFFI\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 6686I5S1A-IN\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CALEFFI","offers":[{"title":"Default Title","offer_id":51348053688626,"sku":"6686I5S1A-IN","price":1544.4,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310555182.jpg?v=1782119354","url":"https:\/\/voomisupply.com\/products\/caleffi-6686i5s1a-in-twistflow-inverted-manifold-9-loops","provider":"Voomi Supply","version":"1.0","type":"link"}