{"product_id":"bk-521-207bg-malleable-black-iron-coupling-1-1-2-in","title":"Bk 521-207BG Malleable Black Iron Coupling 1-1\/2 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe BK 521-207BG is a 1-1\/2 inch malleable black iron coupling designed for joining threaded pipe sections in gas, air, and general-purpose piping systems. Manufactured to ANSI\/ASTM A-197 material standards with dimensions conforming to ANSI\/ASME B16.3, B16.14, and B16.39, this coupling delivers consistent thread engagement per ANSI B1.20.1. Each fitting is individually flag tagged and 100% inspected and quality tested before leaving the facility. Plumbers, pipefitters, and HVAC technicians working with black iron pipe will find this coupling sized and threaded to standard specifications for reliable field installation.\u003c\/p\u003e\u003cp\u003eThis coupling is suited for residential and light commercial piping applications where malleable black iron fittings are required. Typical uses include natural gas distribution lines, compressed air systems, and other general-purpose threaded pipe assemblies where a straight in-line connection between two pipe ends is needed. The fitting is sold individually and is compatible with standard NPT-threaded black iron pipe.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eMalleable black iron construction meeting ANSI\/ASTM A-197 material specification\u003c\/li\u003e\n\u003cli\u003eDimensions conform to ANSI\/ASME B16.3, B16.14, and B16.39\u003c\/li\u003e\n\u003cli\u003eThreads cut to ANSI B1.20.1 NPT standard for consistent fit\u003c\/li\u003e\n\u003cli\u003e100% inspected and quality tested at the factory\u003c\/li\u003e\n\u003cli\u003eIndividually flag tagged for easy identification in the field\u003c\/li\u003e\n\u003cli\u003eSold as a single unit — no minimum order required beyond one piece\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard OEM-style replacement or new-installation fitting for 1-1\/2 inch NPT malleable black iron pipe systems in residential and commercial applications.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a licensed plumber or pipefitter following applicable local codes and IFGC requirements when used on gas lines. Shut off all gas or system pressure and verify zero pressure before disassembling or installing any threaded fitting. Apply an approved thread sealant or PTFE tape rated for the service medium before making up the joint. Hand-tighten first, then use a pipe wrench to bring the joint to a properly engaged thread count without over-stressing the fitting.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Malleable Black Iron\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Standard\u003c\/strong\u003e: ANSI\/ASTM A-197\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimension Standard\u003c\/strong\u003e: ANSI\/ASME B16.3, B16.14, B16.39\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: ANSI B1.20.1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePipe Size\u003c\/strong\u003e: 1-1\/2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.938 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit of Measure\u003c\/strong\u003e: Each\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\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 521-207BG\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"B\u0026K","offers":[{"title":"Default Title","offer_id":51343501197618,"sku":"521-207BG","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310549902.jpg?v=1782022149","url":"https:\/\/voomisupply.com\/products\/bk-521-207bg-malleable-black-iron-coupling-1-1-2-in","provider":"Voomi Supply","version":"1.0","type":"link"}