{"product_id":"sigma-811070010-malleable-iron-pipe-cross-3-4-inch-fnpt-150-lb","title":"Sigma 811070010 Malleable Iron Pipe Cross 3\/4 Inch Fnpt 150 Lb","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SIGMA 811070010 is a FIG 3107 four-way pipe cross fitting designed for low-pressure piping systems. It features female national pipe thread (FNPT) connections on all four ports and is rated at 150 lb, making it suitable for general-purpose water, air, and steam service within its pressure class. Constructed from malleable iron with a galvanized finish, the fitting provides corrosion resistance in exposed or damp environments. Licensed plumbers and pipefitters install this type of fitting when a branch connection is needed in both directions from a common run, consolidating four lines at a single junction point.\u003c\/p\u003e\n\u003cp\u003eThis cross fitting is used in residential and light commercial piping installations where a four-way distribution point is required. Typical applications include water distribution headers, compressed air branch lines, and low-pressure steam piping. The 3\/4 inch nominal size fits standard schedule pipe and compatible threaded fittings of the same nominal diameter. The galvanized coating makes it a common choice in utility rooms, mechanical rooms, and outdoor-adjacent installations where bare iron would be at risk of surface corrosion.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eFIG 3107 four-way cross configuration with FNPT connections on all ports\u003c\/li\u003e\n  \u003cli\u003e150 lb pressure class rated for general-purpose piping service\u003c\/li\u003e\n  \u003cli\u003eMalleable iron construction for strength and resistance to mechanical stress\u003c\/li\u003e\n  \u003cli\u003eGalvanized finish provides corrosion protection in wet or humid environments\u003c\/li\u003e\n  \u003cli\u003e3\/4 inch nominal size compatible with standard threaded pipe and fittings\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 nominal threaded piping systems using 150 lb malleable iron fittings.\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 or IFGC requirements for the service type. Shut off the water or air supply and relieve system pressure completely before making or breaking any threaded connections. Apply an appropriate thread sealant or PTFE tape to all male threads before assembly. Do not over-tighten FNPT connections, as malleable iron threads can crack under excessive torque.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFigure Number\u003c\/strong\u003e: FIG 3107\u003c\/li\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: FNPT (Female 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: 811070010\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SIGMA","offers":[{"title":"Default Title","offer_id":51524882137394,"sku":"GALX34I-LF","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/2f4a73ec90bbd8e99ee0a642a2ba545e_d34f1ad2-ceb4-49ad-b4b0-96e948083247.jpg?v=1785460553","url":"https:\/\/voomisupply.com\/products\/sigma-811070010-malleable-iron-pipe-cross-3-4-inch-fnpt-150-lb","provider":"Voomi Supply","version":"1.0","type":"link"}