{"product_id":"bk-521-404bg-malleable-black-iron-pipe-cap-3-4-in","title":"Bk 521-404BG Malleable Black Iron Pipe Cap 3\/4 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe BK 521-404BG is a 3\/4-inch malleable black iron pipe cap used to terminate open pipe ends in gas, air, and general piping systems. Manufactured from black malleable iron meeting ANSI\/ASTM A-197 material standards, it provides a durable, pressure-rated closure for threaded pipe ends. Each fitting is 100% inspected and quality tested before shipment. The Mueller logo is cast directly into the body of each fitting. This cap is sold individually and is a standard choice for plumbers, pipefitters, and HVAC technicians working with threaded black iron pipe assemblies.\u003c\/p\u003e\n\u003cp\u003eThis fitting is suited for residential and light commercial piping applications where a threaded black iron cap is required to plug or seal a pipe end. Typical uses include capping unused branch outlets, sealing test ports, and closing off temporary or permanent pipe terminations on gas lines, compressed air systems, and other compatible black iron pipe installations. The fitting ships individually flag tagged for easy identification on the job.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eBlack malleable iron construction meets ANSI\/ASTM A-197 material specification\u003c\/li\u003e\n  \u003cli\u003eDimensions conform to ANSI\/ASME B16.3, B16.14, and B16.39 standards\u003c\/li\u003e\n  \u003cli\u003eThreads cut to ANSI B1.20.1 for reliable NPT thread engagement\u003c\/li\u003e\n  \u003cli\u003e100% inspected and quality tested at the factory\u003c\/li\u003e\n  \u003cli\u003eMueller logo cast into the fitting body for brand traceability\u003c\/li\u003e\n  \u003cli\u003eIndividually flag tagged for easy identification on the job site\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement fitting for 3\/4-inch NPT threaded black iron pipe systems in residential and commercial plumbing, gas, and HVAC piping applications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation of black iron pipe fittings on gas systems should be performed by a licensed plumber or pipefitter in accordance with applicable local codes and IFGC requirements. Shut off and depressurize the pipe system before removing or installing any threaded fittings. Apply an approved pipe thread sealant or PTFE tape rated for the service medium to the male threads before assembly. Do not overtighten threaded connections, as malleable iron fittings can crack under excessive torque.\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\u003ePipe Size\u003c\/strong\u003e: 3\/4 inch\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 Standards\u003c\/strong\u003e: ANSI\/ASME B16.3, B16.14, B16.39\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.2 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: 00032888406766\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: 521-404BG\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"B\u0026K","offers":[{"title":"Default Title","offer_id":51344624124210,"sku":"521-404BG","price":15.6,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310549896.jpg?v=1782038248","url":"https:\/\/voomisupply.com\/products\/bk-521-404bg-malleable-black-iron-pipe-cap-3-4-in","provider":"Voomi Supply","version":"1.0","type":"link"}