{"product_id":"watts-6551705","title":"Watts LF1170M2-CEF 3\/4 Lead-Free Thermostatic Mixing Valve, Copper, PEX","description":"\u003cp\u003eThe Watts LF1170M2-CEF 3\/4 is a 3\/4\" lead-free master mixing valve with PEX connections. It blends hot and cold water to hold a field-adjustable outlet temperature of 90°F to 160°F. It is listed to ASSE 1017. It features a copper body and a epdm seat. Rated to 150 psi. This model is certified lead-free for potable-water installations.\u003c\/p\u003e\u003cp\u003eThis 3\/4 inch lead free hot water control valve is designed for installation on water heating equipment to provide tempered water to point-of-use fixtures and is ideal for radiant heat applications. The double throttling design combines hot and cold water control for a sensitive response to water temperature changes in the mixing chamber. It consists of a lead free brass body, cold expansion fitting (CEF\/PEX F1960) end connections for PEX-a tubing, solid wax hydraulic principle thermostat, integral filter washers and check valves, virtual shutoff upon loss of cold water supply, and a locking mechanism for the temperature setting. The maximum pressure is 150 psi (10.3 bar). The adjustable field range temperature is 90 to 160 degrees F (32 to 71 degrees C).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eLead free brass construction\u003c\/li\u003e\n\u003cli\u003eThermal actuation technology for precise temperature control\u003c\/li\u003e\n\u003cli\u003eIntegral filter washers and check valves\u003c\/li\u003e\n\u003cli\u003eASSE 1017 certified, IAMPO cUPC certified, approved to CSA B125.3\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCommon Questions\u003c\/strong\u003e\u003c\/p\u003e\u003cdl\u003e\n\u003cdt\u003e\u003cstrong\u003eCan I use this at a lavatory — is it ASSE 1070 listed?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eNo. This valve is listed to ASSE 1017 only, which is a point-of-distribution standard: it tempers water leaving the water heater for the building distribution piping. An ASSE 1017 valve should never deliver water directly to a user. For a lavatory you need an ASSE 1070 listed valve, and for a shower an ASSE 1016 device — install one of those downstream of this valve.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eWhat temperature range does it deliver?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eThe outlet temperature is field-adjustable from 90°F to 160°F. The hot inlet may be supplied at up to 200°F. It holds that setting down to 0.5 gpm of flow. Set it for the distribution system, not for the fixture — a point-of-use valve downstream sets the final delivered temperature.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eDoes it have integral checks?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eYes. Check valves are built into the hot and cold inlets to stop cross-flow between the supplies, along with integral filter washers\/screens that keep debris off the thermostat. No separate check valves are needed at the valve.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eCan I lock the temperature setting?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eYes. A locking mechanism secures the temperature setting once it is dialed in, so it cannot be moved without deliberately unlocking it.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eWhat happens if the cold water supply fails?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eThe valve shuts down to a virtual drip, so a cold-supply failure cannot send full-temperature hot water downstream.\u003c\/dd\u003e\n\u003c\/dl\u003e\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Mixing\/Tempering\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 3\/4\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnection:\u003c\/strong\u003e PEX\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody Material:\u003c\/strong\u003e Copper\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeat \/ Seal Material:\u003c\/strong\u003e EPDM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax Pressure (psi):\u003c\/strong\u003e 150\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePack Quantity:\u003c\/strong\u003e 12\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e United States\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1 Year Limited\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMPN:\u003c\/strong\u003e LF1170M2-CEF 3\/4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertifications:\u003c\/strong\u003e ASSE-1017, IAPMO\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLead-Free:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eASSE Listing:\u003c\/strong\u003e ASSE 1017\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Point:\u003c\/strong\u003e Point of Distribution\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutlet Temp — Min (°F):\u003c\/strong\u003e 90\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutlet Temp — Max (°F):\u003c\/strong\u003e 160\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Controllable Flow (gpm):\u003c\/strong\u003e 0.5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegral Checks \u0026amp; Filter Washers:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLocking Temperature Adjustment:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShutoff on Cold-Supply Failure:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Gauge Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax Hot Inlet Temp (°F):\u003c\/strong\u003e 200\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnion Connections:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplications:\u003c\/strong\u003e Water Heater;Tankless \/ Boiler;Radiant Heat;Whole House\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Watts","offers":[{"title":"Default Title","offer_id":54935696703787,"sku":"6551705","price":561.84,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0277\/3168\/9577\/files\/8af89a6d8f9b19d4b09b5b732d58e0f8c375de01_4e549985-52e8-480b-bb81-e8b4332cf4cd.jpg?v=1785984850","url":"https:\/\/citysupplygroup.com\/products\/watts-6551705","provider":"City Supply","version":"1.0","type":"link"}