{"product_id":"viega-20203-spring-check-valve-1-in-fnpt-bronze","title":"Viega 20203 Spring Check Valve 1 in Fnpt Bronze","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VIEGA 20203 is a spring check valve designed for use in hydronic radiant heating systems and general plumbing applications. It prevents backflow by using an internal spring mechanism that holds the valve closed until forward flow pressure overcomes the spring tension. The body is constructed from bronze, providing corrosion resistance in wet piping systems. Rated to 200 psi and suitable for fluid temperatures ranging from 36 degrees F to 250 degrees F, the 20203 is built to handle the demands of closed-loop heating circuits. Connections are female NPT (FNPT) at a nominal 1 inch size. Licensed plumbers and hydronic heating technicians are the primary installers for this component.\u003c\/p\u003e\u003cp\u003eThis spring check valve is used in residential and light commercial hydronic radiant heating systems, including in-floor radiant loops, baseboard hot water circuits, and domestic water supply lines where backflow prevention is required. The FNPT end style allows direct threaded connection to standard NPT pipe and fittings. Its 36 to 250 degrees F temperature range makes it suitable for both chilled water and hot water heating applications within those bounds.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eBronze body construction for corrosion resistance in hydronic and potable water systems\u003c\/li\u003e\n\u003cli\u003eSpring-loaded internal mechanism prevents backflow without external actuation\u003c\/li\u003e\n\u003cli\u003eRated to 200 psi for use in pressurized closed-loop systems\u003c\/li\u003e\n\u003cli\u003eTemperature range of 36 to 250 degrees F covers both chilled and hot water service\u003c\/li\u003e\n\u003cli\u003e1 inch FNPT connections for straightforward threaded installation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or new-installation check valve for 1 inch FNPT threaded hydronic radiant heating and plumbing piping systems.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a licensed plumber or hydronic heating technician in accordance with applicable local plumbing codes and the International Plumbing Code (IPC). Shut off the water supply and depressurize the system before installing or replacing this valve. Use thread sealant or PTFE tape on all NPT connections to ensure a leak-free joint. Verify flow direction during installation, as spring check valves are directional and must be oriented correctly to function.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNominal Size\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Style\u003c\/strong\u003e: FNPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePressure Rating\u003c\/strong\u003e: 200 psi\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Rating\u003c\/strong\u003e: 36 to 250 degrees F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody Material\u003c\/strong\u003e: Bronze\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDomestic\/Import\u003c\/strong\u003e: Import\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: VIEGA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 20203\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VIEGA","offers":[{"title":"Default Title","offer_id":51150064976178,"sku":"20203","price":26.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/305987232.jpg?v=1778605124","url":"https:\/\/voomisupply.com\/products\/viega-20203-spring-check-valve-1-in-fnpt-bronze","provider":"Voomi Supply","version":"1.0","type":"link"}