{"product_id":"watts-lfmm432-1-master-mixing-valve-3-4x1-npt-4-gpm","title":"Watts lfmm432-1 Master Mixing Valve 3\/4x1 Npt 4 Gpm","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe WATTS lfmm432-1 is a master mixing valve designed to blend hot and cold water supplies to a stable, user-set outlet temperature. Part of the LFMM430 series, it features a brass body with a rough bronze finish and NPT end connections in a 3\/4 x 1 inch nominal size. Rated for working pressures up to 125 psi and a temperature range of 90 to 180 degrees F, this valve is built for demanding domestic hot water tempering applications. Licensed plumbers install it at water heater outlets or central mixing points to protect building occupants from scald hazards while meeting code-required delivery temperatures.\u003c\/p\u003e\n\u003cp\u003eThe lfmm432-1 is suited for residential and light commercial plumbing systems where a central point-of-source mixing solution is required. Typical installations include the outlet of storage-style water heaters, booster heater systems, and central hot water distribution risers. Its 4 GPM flow rate and standard NPT connections make it a direct-fit solution for most conventional domestic water systems requiring thermostatic mixing control.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eThermostatic master mixing valve maintains stable outlet temperature across varying inlet pressures\u003c\/li\u003e\n  \u003cli\u003e3\/4 x 1 inch nominal NPT end connections for standard plumbing integration\u003c\/li\u003e\n  \u003cli\u003eRated to 125 psi working pressure for compatibility with municipal water supply systems\u003c\/li\u003e\n  \u003cli\u003eTemperature range of 90 to 180 degrees F covers typical domestic hot water tempering requirements\u003c\/li\u003e\n  \u003cli\u003e4 GPM flow rate suited for residential and light commercial point-of-source applications\u003c\/li\u003e\n  \u003cli\u003eBrass body with rough bronze finish for durability in potable water service\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style thermostatic master mixing valve for domestic hot water systems requiring point-of-source temperature control at storage water heaters or central distribution points.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a licensed plumber in accordance with local plumbing codes and ASSE 1017 requirements where applicable. Shut off the water supply and depressurize the system before beginning any connections. Use thread sealant rated for potable water service on all NPT joints. After installation, verify outlet temperature with a calibrated thermometer before returning the system to service.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: LFMM430\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNominal Size\u003c\/strong\u003e: 3\/4 x 1 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnd Style\u003c\/strong\u003e: NPT\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Working Pressure\u003c\/strong\u003e: 125 psi\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTemperature Range\u003c\/strong\u003e: 90 to 180 degrees F\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlow Rate\u003c\/strong\u003e: 4 GPM\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody Material\u003c\/strong\u003e: Brass\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Rough Bronze\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 11-5\/8 inches\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: WATTS\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: lfmm432-1\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"WATTS","offers":[{"title":"Default Title","offer_id":51468617646386,"sku":"LFMM432-1","price":834.37,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/313948471.jpg?v=1783919087","url":"https:\/\/voomisupply.com\/products\/watts-lfmm432-1-master-mixing-valve-3-4x1-npt-4-gpm","provider":"Voomi Supply","version":"1.0","type":"link"}