{"product_id":"bk-mueller-511-321hc-reducing-coupling-3-8-x-1-4-in","title":"Bk Mueller 511-321HC Reducing Coupling 3\/8 X 1\/4 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe BK MUELLER 511-321HC is a malleable iron reducing coupling designed to connect pipes of two different diameters using threaded end connections. Rated at 300 psi for liquid and gas service and 150 psi for steam, this Class 150 fitting handles the pressure demands of standard commercial and residential piping systems. The galvanized finish provides corrosion resistance in both exposed and concealed installations. Plumbers and pipefitters install this coupling where a 3\/8-inch pipe must transition down to a 1\/4-inch pipe in a threaded system.\u003c\/p\u003e\n\u003cp\u003eThis reducing coupling is suited for use in residential and light commercial plumbing, gas distribution, and steam piping applications where a threaded pipe size reduction is required. The 3\/8 x 1\/4 inch configuration makes it a common transition fitting in supply lines, instrumentation connections, and compressed air or gas branch lines. Its malleable iron construction performs reliably across a wide range of fluid and gas media within its rated pressure limits.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eReduces from 3\/8-inch to 1\/4-inch threaded pipe connections\u003c\/li\u003e\n  \u003cli\u003eRated 300 psi for liquid and gas service\u003c\/li\u003e\n  \u003cli\u003eRated 150 psi for steam service\u003c\/li\u003e\n  \u003cli\u003eClass 150 malleable iron construction for durability under cyclic loading\u003c\/li\u003e\n  \u003cli\u003eGalvanized finish for corrosion resistance\u003c\/li\u003e\n  \u003cli\u003eThreaded end connections for standard NPT installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style threaded reducing coupling for 3\/8-inch to 1\/4-inch NPT piping systems in plumbing, gas, and steam service applications rated within Class 150 limits.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by a licensed plumber or pipefitter. Shut off and depressurize the affected line before disassembly or fitting installation. Apply appropriate thread sealant or PTFE tape to all male threads per the applicable piping code, such as the IPC or IFGC. Do not exceed the published pressure ratings for the intended service medium.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFitting Type\u003c\/strong\u003e: Reducing Coupling\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFitting Size\u003c\/strong\u003e: 3\/8 x 1\/4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Malleable Iron\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnd Connection\u003c\/strong\u003e: Threaded\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLiquid and Gas Pressure Rating\u003c\/strong\u003e: 300 psi\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSteam Pressure Rating\u003c\/strong\u003e: 150 psi\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClass\u003c\/strong\u003e: 150\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish Coating\u003c\/strong\u003e: Galvanized\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1.5 pounds\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: BK MUELLER\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 511-321HC\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"B\u0026K MUELLER","offers":[{"title":"Default Title","offer_id":67919037169970,"sku":"511-321HC","price":16.67,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/a35a174b6d393ff76d3e81e7a445efd6.jpg?v=1791275514","url":"https:\/\/voomisupply.com\/products\/bk-mueller-511-321hc-reducing-coupling-3-8-x-1-4-in","provider":"Voomi Supply","version":"1.0","type":"link"}