{"product_id":"bk-521-407bg-malleable-black-iron-pipe-cap-1-1-2-in","title":"Bk 521-407BG Malleable Black Iron Pipe Cap 1-1\/2 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe BK 521-407BG is a 1-1\/2 inch malleable black iron pipe cap used to close off the end of a threaded pipe run. Manufactured to meet ANSI\/ASTM A-197 material standards, with threads conforming to ANSI B1.20.1 and dimensions per ANSI\/ASME B16.3, B16.14, and B16.39. Each fitting is individually flag tagged and 100% inspected and quality tested before shipment. This cap is a standard component in gas, plumbing, and HVAC piping systems where a clean, pressure-rated pipe termination is required. Licensed plumbers, pipefitters, and HVAC technicians are the typical installers.\u003c\/p\u003e\n\u003cp\u003eThe 521-407BG is suited for use in residential and light commercial piping applications involving black iron pipe systems. Common use cases include capping gas supply lines, closing unused branch outlets, and pressure-testing pipe assemblies. At 1-1\/2 inch, it fits standard NPT-threaded black iron pipe of that size. The Mueller logo is cast into the body of each fitting, indicating the manufacturing source behind this BK-distributed product.\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\u003eThreads conform to ANSI B1.20.1 for reliable NPT engagement\u003c\/li\u003e\n  \u003cli\u003eDimensions per ANSI\/ASME B16.3, B16.14, and B16.39\u003c\/li\u003e\n  \u003cli\u003eIndividually flag tagged and 100% inspected and quality tested\u003c\/li\u003e\n  \u003cli\u003eMueller logo cast into fitting body\u003c\/li\u003e\n  \u003cli\u003eSold individually (each)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard NPT threaded cap for 1-1\/2 inch black iron pipe systems used in gas, plumbing, and HVAC 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 IFGC, or the IPC as relevant to the service. Shut off gas or water supply and depressurize the line before fitting installation. Apply appropriate thread sealant or pipe tape rated for the service medium before threading the cap onto the pipe. Do not over-tighten; hand-snug then finish with a pipe wrench to avoid cracking the fitting.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSize\u003c\/strong\u003e: 1-1\/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\u003eDimensional 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\u003eWeight\u003c\/strong\u003e: 0.465 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: 521-407BG\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"B\u0026K","offers":[{"title":"Default Title","offer_id":51345341808946,"sku":"521-407BG","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310549868.jpg?v=1782055277","url":"https:\/\/voomisupply.com\/products\/bk-521-407bg-malleable-black-iron-pipe-cap-1-1-2-in","provider":"Voomi Supply","version":"1.0","type":"link"}