{"product_id":"bk-521-408bg-malleable-black-iron-pipe-cap-2-in","title":"Bk 521-408BG Malleable Black Iron Pipe Cap 2 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe BK 521-408BG is a 2-inch malleable black iron pipe cap designed for threaded pipe systems in gas, plumbing, and mechanical applications. This fitting threads onto the end of an open pipe to seal it off, preventing flow, containing pressure, or capping unused branch outlets. Constructed from malleable black iron meeting ANSI\/ASTM A-197 material standards, it is built for durability in low-to-medium pressure systems. Each fitting is individually flag tagged and 100% inspected before leaving the factory. Threads conform to ANSI B1.20.1 for consistent, leak-free engagement with standard NPT fittings. Licensed plumbers, pipefitters, and HVAC mechanics are the typical installers.\u003c\/p\u003e\n\u003cp\u003eThis cap is suited for residential and light commercial piping installations where a threaded black iron end closure is needed. Common applications include natural gas distribution systems, fuel oil lines, and general mechanical piping where black iron fittings are specified. The 2-inch size fits standard 2-inch NPT threaded pipe ends. It is sold individually and is appropriate for both new construction and retrofit work where an open pipe end requires a permanent or temporary seal.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eMalleable black iron construction meets ANSI\/ASTM A-197 material specification\u003c\/li\u003e\n  \u003cli\u003eThreaded to ANSI B1.20.1 for standard NPT compatibility\u003c\/li\u003e\n  \u003cli\u003eDimensions conform to ANSI\/ASME B16.14 and B16.39 standards\u003c\/li\u003e\n  \u003cli\u003e100% inspected and quality tested at the factory\u003c\/li\u003e\n  \u003cli\u003eIndividually flag tagged for easy identification at the job site\u003c\/li\u003e\n  \u003cli\u003eMueller logo cast into the body of each fitting\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement and standard fitting for 2-inch NPT threaded black iron pipe systems in gas, plumbing, and mechanical piping applications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by licensed plumbers or pipefitters following applicable local codes and IFGC requirements where gas systems are involved. Shut off and depressurize the pipe system before threading on the cap. Apply an approved pipe thread sealant or PTFE tape rated for the service medium prior to making up the joint. Do not over-tighten; use a pipe wrench sized appropriately for the fitting to avoid cracking the casting.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSize\u003c\/strong\u003e: 2 inches\u003c\/li\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 B16.14, 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\u003eWeight\u003c\/strong\u003e: 0.934 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUnit of Measure\u003c\/strong\u003e: Each\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: 521-408BG\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"B\u0026K","offers":[{"title":"Default Title","offer_id":51347945718066,"sku":"521-408BG","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310549865.jpg?v=1782116530","url":"https:\/\/voomisupply.com\/products\/bk-521-408bg-malleable-black-iron-pipe-cap-2-in","provider":"Voomi Supply","version":"1.0","type":"link"}