{"product_id":"bk-mueller-511-385hc-malleable-iron-reducing-coupling-2x1-in","title":"Bk Mueller 511-385HC Malleable Iron Reducing Coupling 2x1 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe BK MUELLER 511-385HC is a Class 150 malleable iron reducing coupling designed for threaded pipe connections transitioning from 2-inch to 1-inch diameter. This galvanized fitting handles liquid and gas service at up to 300 psi and steam service at up to 150 psi. Malleable iron construction provides the ductility needed to withstand mechanical stress and vibration in working piping systems. Licensed plumbers and pipefitters install this coupling where pipe sizing must step down within a distribution run, whether in commercial mechanical rooms, industrial process lines, or residential utility applications.\u003c\/p\u003e\u003cp\u003eThis reducing coupling is suited for gas distribution piping, hydronic heating systems, compressed air lines, and other liquid or steam systems that fall within the rated pressure limits. The threaded end connection conforms to standard NPT fitting practices, making it compatible with common pipe wrenches and pipe thread sealants. It carries a galvanized finish to provide corrosion resistance in exposed or damp installation environments.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eReducing coupling steps down from 2-inch to 1-inch pipe in a single threaded fitting\u003c\/li\u003e\n\u003cli\u003e300 psi liquid and gas pressure rating for demanding service conditions\u003c\/li\u003e\n\u003cli\u003e150 psi steam pressure rating for steam distribution piping\u003c\/li\u003e\n\u003cli\u003eClass 150 malleable iron construction offers strength with resistance to impact and vibration\u003c\/li\u003e\n\u003cli\u003eGalvanized finish provides corrosion resistance in exposed or moisture-prone environments\u003c\/li\u003e\n\u003cli\u003eThreaded NPT end connections for standard wrench installation without special tooling\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or new-installation fitting for 2-inch by 1-inch NPT threaded pipe systems operating within Class 150 pressure and temperature limits for liquid, gas, or steam service.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a licensed plumber or pipefitter in accordance with applicable plumbing and mechanical codes, including the IPC and IFGC where relevant. Depressurize and isolate the affected pipe section fully before removing any existing fittings or installing this coupling. Apply an approved pipe thread sealant or PTFE tape to the male threads before assembly, and tighten to snug with a pipe wrench  -  avoid over-tightening, which can crack threaded fittings. For gas service, verify all joints with an approved leak-detection solution after restoring pressure.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\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: 2 x 1 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Malleable Iron\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish Coating\u003c\/strong\u003e: Galvanized\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\u003eWeight\u003c\/strong\u003e: 1.5 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\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: 511-385HC\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"B\u0026K MUELLER","offers":[{"title":"Default Title","offer_id":67907841917234,"sku":"511-385HC","price":26.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/7e36d455f991ef6f03b03c8b5b1de954.jpg?v=1791181597","url":"https:\/\/voomisupply.com\/products\/bk-mueller-511-385hc-malleable-iron-reducing-coupling-2x1-in","provider":"Voomi Supply","version":"1.0","type":"link"}