{"product_id":"caleffi-644269a-2-way-zone-valve-1-inch-sweat-24v","title":"Caleffi 644269a 2-way Zone Valve 1 Inch Sweat 24V","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe CALEFFI 644269a is a 2-way zone valve designed for hydronic heating and cooling systems. It operates on 24 volts and features a 1-inch sweat (SWT) connection, making it compatible with standard copper piping installations. With a flow coefficient (Cv) of 13, it delivers reliable flow control for residential and light commercial zoning applications. Licensed plumbers and HVAC technicians install this valve to isolate or regulate flow within a zoned hydronic loop, ensuring precise temperature management across individual zones without affecting the rest of the system.\u003c\/p\u003e\u003cp\u003eThis valve is suited for residential and light commercial hydronic systems where zone-by-zone flow control is required. The 1-inch sweat end connections are standard for copper piping used in hot water heating and chilled water cooling distribution. The 24-volt actuator makes it compatible with low-voltage zone controls and thermostats commonly used in forced-hot-water and radiant heating setups. HVAC and plumbing contractors typically install this valve as part of a multi-zone hydronic system controlled by a zone panel or relay board.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e2-way design for on\/off hydronic zone control\u003c\/li\u003e\n\u003cli\u003e1-inch sweat (SWT) end connections for standard copper piping\u003c\/li\u003e\n\u003cli\u003e24-volt actuator compatible with low-voltage zone controls and thermostats\u003c\/li\u003e\n\u003cli\u003eCv of 13 for dependable flow capacity across residential and light commercial zones\u003c\/li\u003e\n\u003cli\u003eCompact actuator design suited for tight mechanical room installations\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement for 2-way hydronic zone valves with 1-inch sweat connections and 24-volt actuators in residential and light commercial heating and cooling systems.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a licensed plumber or HVAC technician. Shut off system water supply and depressurize the piping before soldering sweat connections, keeping heat away from the valve body and actuator. Disconnect power to the zone control panel before wiring the 24-volt actuator leads. Follow local plumbing codes and the IFGC or IPC as applicable for hydronic system service and pressure testing after installation.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Configuration\u003c\/strong\u003e: 2-Way\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnection Type\u003c\/strong\u003e: 1 inch Sweat (SWT)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActuator Voltage\u003c\/strong\u003e: 24 volts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlow Coefficient (Cv)\u003c\/strong\u003e: 13\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\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: 644269a\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CALEFFI","offers":[{"title":"Default Title","offer_id":51467382030642,"sku":"644269A","price":343.55,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/644269A.jpg?v=1783902944","url":"https:\/\/voomisupply.com\/products\/caleffi-644269a-2-way-zone-valve-1-inch-sweat-24v","provider":"Voomi Supply","version":"1.0","type":"link"}