{"product_id":"bk-mueller-520-143hn-90-reducing-elbow-3-4x1-2-in-threaded","title":"Bk Mueller 520-143HN 90 Reducing Elbow 3\/4x1\/2 in Threaded","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe BK MUELLER 520-143HN is a black malleable iron 90-degree reducing elbow designed for threaded pipe systems in gas and liquid distribution applications. It transitions from a 3\/4-inch line to a 1\/2-inch branch at a right angle using female iron pipe (FIP) threads on both ends. Rated at Class 150 with a pressure rating of 300 psi, this fitting handles the demands of commercial and residential piping systems. The black finish is standard for gas-line applications. Installation is performed by licensed plumbers or HVAC technicians where code-compliant threaded connections are required.\u003c\/p\u003e\n\u003cp\u003eThis reducing elbow is used in residential and light commercial gas distribution piping, hydronic heating systems, compressed air lines, and other fluid or gas conveyance systems where a 90-degree directional change with a size reduction is needed in a single fitting. Its malleable iron construction provides the durability and thread integrity required for permanent or semi-permanent installations in both exposed and concealed piping runs.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e90-degree reducing elbow transitions from 3\/4 inches to 1\/2 inches in one fitting\u003c\/li\u003e\n  \u003cli\u003eFemale iron pipe (FIP) threads on both ends for standard threaded connections\u003c\/li\u003e\n  \u003cli\u003eMalleable iron construction rated at 300 psi working pressure\u003c\/li\u003e\n  \u003cli\u003eClass 150 classification suitable for gas and liquid service\u003c\/li\u003e\n  \u003cli\u003eBlack finish standard for natural gas and propane piping installations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or new-installation fitting compatible with standard 3\/4-inch by 1\/2-inch FIP threaded malleable iron pipe systems rated at Class 150.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis fitting is installed by licensed plumbers or HVAC technicians following applicable codes including the IFGC and IPC. Shut off and depressurize the supply line before threading or unthreading any fittings. Apply an approved pipe thread sealant or PTFE tape to the male threads before assembly. Do not over-tighten; use a pipe wrench appropriate to the fitting size and inspect for leaks after restoring pressure.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFitting Type\u003c\/strong\u003e: 90-Degree Reducing Elbow\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFitting Size\u003c\/strong\u003e: 3\/4 x 1\/2 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnd Connections\u003c\/strong\u003e: Threaded (FIP)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: FIP\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Malleable Iron\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Black\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClassification\u003c\/strong\u003e: Class 150\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePressure Rating\u003c\/strong\u003e: 300 psi\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.05 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: 520-143HN\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"B\u0026K MUELLER","offers":[{"title":"Default Title","offer_id":67918103937330,"sku":"520-143HN","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d8e85106119a54f62db65800c5668ca6.jpg?v=1791267347","url":"https:\/\/voomisupply.com\/products\/bk-mueller-520-143hn-90-reducing-elbow-3-4x1-2-in-threaded","provider":"Voomi Supply","version":"1.0","type":"link"}