{"product_id":"watts-821787-lead-free-black-dielectric-union-3-4-inch","title":"Watts 821787 Lead Free Black Dielectric Union 3\/4 Inch","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe WATTS 821787 is a 3\/4-inch IPS lead free black dielectric union designed to prevent accelerated corrosion and deterioration in piping systems caused by galvanic action and stray electrical current. It connects pipes made from dissimilar metals by isolating them electrically, using a Buna-N gasket between two tailpieces to break the current path. The assembly includes a union nut, two tailpieces, and female iron pipe thread to female iron pipe thread connections finished in black. Rated to 180 degrees F and 250 psi, this union is built for demanding residential and commercial service conditions. Licensed plumbers install this fitting as part of code-compliant piping assemblies.\u003c\/p\u003e\n\u003cp\u003eThis dielectric union is used in both residential and commercial plumbing installations where copper and steel piping meet. Common applications include hot water storage tanks, water heaters, air conditioning systems, processing tanks, steam piping, gas piping, and potable water piping. The lead free construction makes it suitable for use in systems carrying drinking water where lead-free compliance is required by local plumbing codes.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eLead free construction for compliance with drinking water regulations\u003c\/li\u003e\n  \u003cli\u003eBuna-N gasket electrically isolates tailpieces to stop galvanic current flow\u003c\/li\u003e\n  \u003cli\u003eFemale iron pipe thread to female iron pipe thread connections in black finish\u003c\/li\u003e\n  \u003cli\u003eRated to 250 psi maximum working pressure\u003c\/li\u003e\n  \u003cli\u003eMaximum temperature rating of 180 degrees F (82 degrees C)\u003c\/li\u003e\n  \u003cli\u003eSuitable for steam, gas, water, and hot water storage tank applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement dielectric union for residential and commercial plumbing systems where dissimilar metal pipe connections require galvanic isolation, including hot water storage tanks, water and air conditioning systems, processing tanks, and steam, gas, and water piping.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a licensed plumber in accordance with applicable local plumbing codes. Shut off the water supply and relieve system pressure before beginning any pipe work. Use appropriate thread sealant or PTFE tape on the FIP threads and avoid over-tightening, which can damage the gasket seat. Verify that the Buna-N gasket is properly seated before final assembly to ensure electrical isolation is maintained.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePipe Size\u003c\/strong\u003e: 3\/4 inch IPS\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConnection Type\u003c\/strong\u003e: Female Iron Pipe Thread (FIP) x Female Iron Pipe Thread (FIP)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Black\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGasket Material\u003c\/strong\u003e: Buna-N\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Working Pressure\u003c\/strong\u003e: 250 psi (17.2 bar)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Temperature\u003c\/strong\u003e: 180 degrees F (82 degrees C)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLead Free\u003c\/strong\u003e: Yes\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: WATTS\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 821787\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"WATTS","offers":[{"title":"Default Title","offer_id":51467721048370,"sku":"821787","price":75.91,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/313946810.jpg?v=1783911229","url":"https:\/\/voomisupply.com\/products\/watts-821787-lead-free-black-dielectric-union-3-4-inch","provider":"Voomi Supply","version":"1.0","type":"link"}