{"product_id":"bk-mueller-511-804hp-3-4-inch-malleable-iron-square-plug","title":"Bk Mueller 511-804HP 3\/4 Inch Malleable Iron Square Plug","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe BK MUELLER 511-804HP is a 3\/4 inch malleable iron square plug designed to seal threaded pipe ends in plumbing, gas, and steam distribution systems. With a liquid and gas pressure rating of 300 psi and a steam pressure rating of 150 psi, this Class 150 fitting handles the demands of both residential and light commercial installations. The galvanized finish provides corrosion resistance for long service life in exposed or damp environments. Licensed plumbers and pipefitters install this type of plug to cap unused branch outlets, dead-end lines, or test ports during system commissioning and maintenance.\u003c\/p\u003e\n\u003cp\u003eThis square plug is suited for threaded pipe systems carrying liquid, gas, or low-pressure steam. The 3\/4 inch size fits standard NPT female-threaded fittings and is a common stock item for plumbing rough-in work, gas distribution manifolds, and steam heating systems. The square head design allows installation and removal with a standard pipe wrench or adjustable wrench without the need for specialized tooling.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e300 psi liquid and gas pressure rating for reliable sealing in pressurized systems\u003c\/li\u003e\n  \u003cli\u003e150 psi steam pressure rating suitable for low-pressure steam heating applications\u003c\/li\u003e\n  \u003cli\u003eMalleable iron construction provides strength and impact resistance over cast iron\u003c\/li\u003e\n  \u003cli\u003eGalvanized finish resists corrosion in damp or outdoor-adjacent installations\u003c\/li\u003e\n  \u003cli\u003eSquare head profile accepts standard pipe wrench for easy installation and removal\u003c\/li\u003e\n  \u003cli\u003eClass 150 rated threaded fitting meets common plumbing and gas system requirements\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or stock fitting for standard 3\/4 inch NPT threaded pipe systems in plumbing, gas, and steam 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 plumbing and mechanical codes, including the IPC and IFGC where relevant. Shut off and depressurize the system fully before removing or installing any threaded plug. Apply appropriate thread sealant or PTFE tape to the male threads before installation. Do not overtighten, as malleable iron threads can be damaged by excessive torque.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFitting Type\u003c\/strong\u003e: Square Plug\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFitting Size\u003c\/strong\u003e: 3\/4 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Malleable Iron\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnd Connection\u003c\/strong\u003e: Threaded\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLiquid and Gas Pressure Rating\u003c\/strong\u003e: 300 psi\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSteam Pressure Rating\u003c\/strong\u003e: 150 psi\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClass\u003c\/strong\u003e: 150\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish Coating\u003c\/strong\u003e: Galvanized\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1 pound\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 MUELLER\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 511-804HP\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"B\u0026K MUELLER","offers":[{"title":"Default Title","offer_id":67912054309170,"sku":"511-804HP","price":15.73,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/6af7f50acf85b3fe0c3ddff45355764c.jpg?v=1791226216","url":"https:\/\/voomisupply.com\/products\/bk-mueller-511-804hp-3-4-inch-malleable-iron-square-plug","provider":"Voomi Supply","version":"1.0","type":"link"}