{"product_id":"bk-521-204bg-malleable-black-iron-coupling-3-4-in","title":"Bk 521-204BG Malleable Black Iron Coupling 3\/4 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe BK 521-204BG is a 3\/4-inch malleable black iron coupling designed for threaded pipe assemblies in gas, water, and general-purpose piping systems. Manufactured from malleable iron meeting ANSI\/ASTM A-197 material standards, this coupling joins two sections of male-threaded pipe in a straight run. Threads conform to ANSI B1.20.1, and dimensional standards meet ANSI\/ASME B16.3, B16.14, and B16.39. Each fitting is individually flag tagged and 100% inspected and quality tested before shipment. Licensed plumbers and pipefitters install this fitting in both residential and light commercial applications.\u003c\/p\u003e\n\u003cp\u003eThis coupling is suited for use in black iron pipe systems where a threaded, non-union straight connection is required. Common applications include gas distribution lines, steam piping, compressed air, and general fluid conveyance. The 3\/4-inch size is a standard trade size found throughout residential gas supply runs and commercial mechanical rooms. Plumbing and mechanical contractors working with Schedule 40 black iron pipe will encounter this size routinely in branch and main line assemblies.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eMalleable iron construction per ANSI\/ASTM A-197 for durability in threaded piping systems\u003c\/li\u003e\n  \u003cli\u003eThreads cut to ANSI B1.20.1 for reliable engagement with standard NPT pipe\u003c\/li\u003e\n  \u003cli\u003eDimensional compliance with ANSI\/ASME B16.3, B16.14, and B16.39\u003c\/li\u003e\n  \u003cli\u003e100% inspected and quality tested at the factory\u003c\/li\u003e\n  \u003cli\u003eIndividually flag tagged for identification and traceability\u003c\/li\u003e\n  \u003cli\u003eSold individually; minimum order quantity of 5 units\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement and standard-use fitting for 3\/4-inch NPT threaded black iron pipe systems in residential and commercial gas, steam, and fluid piping applications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a licensed plumber or pipefitter in accordance with applicable local codes, the International Fuel Gas Code (IFGC), and the International Plumbing Code (IPC). Shut off gas or fluid supply and depressurize the line completely before disassembly or fitting installation. Apply an approved thread sealant or pipe tape rated for the intended service to the male threads before assembly. Do not overtighten; follow standard hand-tight-plus-turns practice appropriate for malleable iron fittings.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Malleable Black Iron, ANSI\/ASTM A-197\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: ANSI B1.20.1 (NPT)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensional Standard\u003c\/strong\u003e: ANSI\/ASME B16.3, B16.14, B16.39\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePipe Size\u003c\/strong\u003e: 3\/4 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.295 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUnit of Measure\u003c\/strong\u003e: Each\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Order Quantity\u003c\/strong\u003e: 5\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUPC\u003c\/strong\u003e: 00032888406902\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\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 521-204BG\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"B\u0026K","offers":[{"title":"Default Title","offer_id":51344127066418,"sku":"521-204BG","price":16.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310549901.jpg?v=1782030023","url":"https:\/\/voomisupply.com\/products\/bk-521-204bg-malleable-black-iron-coupling-3-4-in","provider":"Voomi Supply","version":"1.0","type":"link"}