{"product_id":"sigma-811092618-pipe-reducing-coupling-4x3-in-150-lb-galvanized","title":"Sigma 811092618 Pipe Reducing Coupling 4x3 in 150 Lb Galvanized","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SIGMA 811092618 is a galvanized malleable iron pipe reducing coupling rated at 150 lb, designed to connect pipes of two different nominal diameters in a straight run. The coupling transitions from a 4-inch nominal pipe to a 3-inch nominal pipe, making it a reliable choice for reducing flow path diameter without the need for additional fittings. The galvanized finish provides corrosion resistance suitable for a wide range of piping environments. Licensed plumbers and pipefitters install this type of fitting in both new construction and retrofit work where pipe size changes are required along a run.\u003c\/p\u003e\n\u003cp\u003eThis reducing coupling is suited for residential and commercial plumbing, water distribution, and general industrial piping systems where malleable iron threaded fittings are specified. The 150 lb pressure rating meets standard service requirements for water, steam, and air piping applications. It is a threaded fitting, intended for use where NPT-threaded pipe connections are required and where galvanized iron is the appropriate material for the service environment.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eReduces from 4-inch nominal to 3-inch nominal pipe in a single straight fitting\u003c\/li\u003e\n  \u003cli\u003e150 lb pressure rating suitable for water, steam, and air service\u003c\/li\u003e\n  \u003cli\u003eMalleable iron construction provides strength and impact resistance\u003c\/li\u003e\n  \u003cli\u003eGalvanized finish resists corrosion in wet and outdoor environments\u003c\/li\u003e\n  \u003cli\u003eThreaded NPT connections for standard installation with pipe wrenches\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 4-inch to 3-inch nominal threaded pipe systems using standard 150 lb malleable iron fittings.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by licensed plumbers or pipefitters in accordance with applicable local plumbing codes and ASME B16.3 standards for malleable iron threaded fittings. Shut off and depressurize the piping system completely before removing or installing any fitting. Apply thread sealant or PTFE tape to the male NPT threads before assembly, and tighten with appropriate pipe wrenches to achieve a leak-free joint. Do not over-torque, as malleable iron threads can be damaged by excessive force.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNominal Size\u003c\/strong\u003e: 4 x 3 inches\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\u003eConnection Type\u003c\/strong\u003e: Threaded NPT\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: 811092618\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SIGMA","offers":[{"title":"Default Title","offer_id":51525389025586,"sku":"GALRED43I-LF","price":64.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/f0eabc50583c61a419da8ef4f53862fd_8c5557e3-7a5b-4a29-a3dc-533edd2d1fc3.jpg?v=1785472478","url":"https:\/\/voomisupply.com\/products\/sigma-811092618-pipe-reducing-coupling-4x3-in-150-lb-galvanized","provider":"Voomi Supply","version":"1.0","type":"link"}