{"product_id":"sigma-819902412-square-head-plug-3-4-in-mnpt-150-lb-galvanized","title":"Sigma 819902412 Square Head Plug 3\/4 in Mnpt 150 Lb Galvanized","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SIGMA 819902412 is a cored square head plug designed for use in threaded pipe systems requiring a removable closure. The plug features a male NPT (MNPT) end style for direct engagement with female-threaded fittings and is rated at 150 lb, making it suitable for standard-pressure piping applications. Constructed from malleable iron with a galvanized finish, this plug resists corrosion in exposed or moderately harsh environments. It is sized at 3\/4 inch nominal and is typically installed by plumbers, pipefitters, and mechanical contractors during system construction, pressure testing, or where future access points are needed.\u003c\/p\u003e\n\u003cp\u003eThis cored square head plug is used in residential and commercial piping systems where a temporary or permanent threaded closure is required. The square head drive allows removal or installation using a standard wrench or socket, which is common practice when plugging branch outlets, test ports, and drain taps in water, gas, and steam distribution lines rated within the 150 lb class.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e3\/4 inch nominal size with MNPT end style for standard threaded fitment\u003c\/li\u003e\n  \u003cli\u003e150 lb pressure class rating suitable for standard-service piping\u003c\/li\u003e\n  \u003cli\u003eMalleable iron construction provides strength and impact resistance\u003c\/li\u003e\n  \u003cli\u003eGalvanized finish adds corrosion protection for extended service life\u003c\/li\u003e\n  \u003cli\u003eSquare head drive allows installation and removal with common hand tools\u003c\/li\u003e\n  \u003cli\u003eCored design consistent with Class 3111 malleable iron pipe fitting standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or new-installation fitting for 3\/4 inch female NPT threaded pipe connections in 150 lb class malleable iron piping systems.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by licensed plumbers or pipefitters in accordance with applicable mechanical and plumbing codes such as the IPC or IFGC. Shut off and depressurize the piping system completely before removing or installing any threaded plug. Apply an appropriate thread sealant or PTFE tape to the male threads before engagement. Do not overtighten, 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\u003eNominal Size\u003c\/strong\u003e: 3\/4 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnd Style\u003c\/strong\u003e: MNPT (Male National Pipe Thread)\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\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: 819902412\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SIGMA","offers":[{"title":"Default Title","offer_id":51523377529138,"sku":"GALPL34I-LF","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/b7fa60f85911efd2327b7d52f8ddca0b.jpg?v=1785441209","url":"https:\/\/voomisupply.com\/products\/sigma-819902412-square-head-plug-3-4-in-mnpt-150-lb-galvanized","provider":"Voomi Supply","version":"1.0","type":"link"}