{"product_id":"sigma-819902651-square-head-plug-3-inch-mnpt-150-lb","title":"Sigma 819902651 Square Head Plug 3 Inch Mnpt 150 Lb","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SIGMA 819902651 is a cored square head plug designed for use in threaded pipe systems requiring a reliable, pressure-rated closure. Built from malleable iron with a galvanized finish, this plug features a 3-inch nominal size with a male NPT (MNPT) end style, rated at 150 lb. The cored design allows the plug to be drilled out when a future tap or branch connection is needed. Licensed plumbers and pipefitters install this fitting in iron pipe systems where a removable, threaded closure is required. The galvanized coating provides corrosion resistance suited to both indoor and light outdoor service environments.\u003c\/p\u003e\n\u003cp\u003eThis square head plug is used in residential and commercial plumbing, fire protection, and industrial piping applications. The 150 lb pressure rating makes it appropriate for low- to moderate-pressure water, steam, and general service piping. The MNPT connection threads directly into a female-threaded pipe, fitting, or valve end. Domestically produced, it meets standard expectations for malleable iron threaded fittings in piping assemblies across a wide range of trade applications.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e3-inch nominal size for use in standard iron pipe systems\u003c\/li\u003e\n  \u003cli\u003eMNPT end style threads directly into female-threaded fittings or pipe ends\u003c\/li\u003e\n  \u003cli\u003e150 lb pressure rating suitable for low- to moderate-pressure service\u003c\/li\u003e\n  \u003cli\u003eCored construction allows future drilling for branch taps\u003c\/li\u003e\n  \u003cli\u003eMalleable iron with galvanized finish for corrosion resistance\u003c\/li\u003e\n  \u003cli\u003eDomestically manufactured\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard 150 lb malleable iron threaded fitting compatible with 3-inch MNPT female-threaded pipe ends, couplings, and fittings in iron pipe systems.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is typically performed by a licensed plumber or pipefitter following applicable IPC and IFGC code requirements. Shut off and depressurize the pipe system completely before installing or removing threaded plugs. Apply an appropriate thread sealant or PTFE tape to the MNPT threads before installation. Use a properly sized pipe wrench to achieve a secure, leak-free connection without over-tightening, which can crack malleable iron fittings.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNominal Size\u003c\/strong\u003e: 3 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnd Style\u003c\/strong\u003e: MNPT\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePressure Rating\u003c\/strong\u003e: 150 lb\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Malleable Iron\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Galvanized\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOrigin\u003c\/strong\u003e: Domestic\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: SIGMA\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 819902651\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SIGMA","offers":[{"title":"Default Title","offer_id":51523425927474,"sku":"GALPL3I-LF","price":19.22,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/b31f6e75156498d8eadc6c66d093da51.jpg?v=1785442136","url":"https:\/\/voomisupply.com\/products\/sigma-819902651-square-head-plug-3-inch-mnpt-150-lb","provider":"Voomi Supply","version":"1.0","type":"link"}