{"product_id":"watts-f254369","title":"Watts 140S-3 100\/210 FS 3\/4 Relief Valve, Bronze","description":"\u003cp\u003eThe Watts 140S-3 100\/210 FS 3\/4 is a 3\/4\" temperature and pressure (T\u0026amp;P) relief valve for commercial water heater service, factory set at 100 psi and 210°F. It features a bronze body. Rated to 150 psi and up to 210°F.\u003c\/p\u003e\u003cp\u003eThis automatic reseating temperature and pressure relief valve has a 3\/4 inch NPTF female inlet, 3\/4 inch NPTF female outlet, 3 inch coated thermostat, pressure relief setpoint of 100 psi, and temperature relief setpoint of 210 degrees F. The valve can be installed directly in tank tappings for commercial applications to provide protection for hot water supply tanks and hot water heaters. It features a bronze body, tamper resistant bonnet screws, and test lever. Includes a nonrestrictive discharge drain line flood sensor with SentryPlus Alert® technology to detect excessive water discharges from the relief valve. When paired with an add on connection kit, the sensor is activated to relay alerts for potential flooding events. Connection kit options include BMS, cellular communication, and the Sensor Control Monitor which enables integration with BAS via RS‑485 Modbus or the Nexa platform through Wi-Fi.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFeatures a flood sensor with SentryPlus Alert technology to detect excessive water discharges from the relief valve\u003c\/li\u003e\n\u003cli\u003eRequires purchase of activation kit to activate sensor\u003c\/li\u003e\n\u003cli\u003eIntegrates with the Sensor Control Monitor to deliver maintenance alerts to BAS via RS-485 Modbus or the Nexa platform by Wi-Fi connectivity\u003c\/li\u003e\n\u003cli\u003eBronze body\u003c\/li\u003e\n\u003cli\u003eTamper resistant bonnet screws\u003c\/li\u003e\n\u003cli\u003e3 Inch coated thermostat length\u003c\/li\u003e\n\u003cli\u003eNon-mechanical seat to disc alignment\u003c\/li\u003e\n\u003cli\u003eSet pressure 100 psi\u003c\/li\u003e\n\u003cli\u003eIncludes: Flood Sensor\u003c\/li\u003e\n\u003cli\u003eIncludes: Tamper Switch\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCommon Questions\u003c\/strong\u003e\u003c\/p\u003e\u003cdl\u003e\n\u003cdt\u003e\u003cstrong\u003eWhat pressure is this valve set to?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eIt is factory set to relieve at 100 psi and 210°F. The setting is fixed and is not field-adjustable. Note the 150 psi figure in the specifications is the maximum of the series' pressure range — the ceiling the body is built for, not this valve's relief point. This valve opens at 100 psi. Match it to the appliance nameplate: the relief setting must not exceed the working pressure stamped on the vessel you are protecting.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eWill it fit my water heater — what BTU input does it cover?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eSizing a T\u0026amp;P valve is a capacity question, not just a thread question: the valve's BTU\/hr discharge rating must equal or exceed the input on the heater's data plate. Watts does not publish a capacity for this specific model in the data we carry, so check the BTU\/hr figure on the valve's spec sheet against your heater's nameplate input before ordering. The 3\" thermostat probe also has to reach the hot water in the tank — confirm it suits your tapping.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eIs this ASME rated?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eYes. It is ASME rated and carries the \"HV\" code symbol under ASME BPVC Section XIII (the section that replaced Section IV for overpressure protection), and it is National Board (NBBI) certified. It is also ANSI Z21.22 \/ CSA 4.4 approved, which is the listing water heater relief valves are required to carry. Inspectors look for that stamp on the valve body, and it is there.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eCan I use this on potable water?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eNo. This model is not certified lead-free, so it cannot be installed in a potable (drinking) water line under the NSF\/ANSI 372 weighted-average lead rule. Use it on non-potable service, or order the \"LF\" version of this model for potable water.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eWhat thermostat length do I need?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eThis valve has a 3\" thermostat probe. The probe must reach into the top 6\" of the tank's stored water to sense temperature, so it has to match the depth of your tapping — too short and the valve never sees the overheat it exists to catch. Watts builds this series in several probe lengths; measure before ordering.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eDoes the discharge have to be piped?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eYes. Codes require the outlet to be piped full-size to a safe point of discharge, terminating with an air gap and no valve, cap, or reducer anywhere in the line — a relief valve that cannot discharge freely is not protecting anything. The manual test lever should be operated at least annually to confirm the valve is not seized.\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 Relief\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 3\/4\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInlet Size:\u003c\/strong\u003e 3\/4\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutlet Size:\u003c\/strong\u003e 3\/4\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody Material:\u003c\/strong\u003e Bronze\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 140S-3 100\/210 FS 3\/4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature:\u003c\/strong\u003e up to 210°F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertifications:\u003c\/strong\u003e ASME Section XIII (HV), NBBI, ANSI Z21.22, CSA 4.4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLead-Free:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelief Type:\u003c\/strong\u003e Temperature \u0026amp; Pressure\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFactory Set Pressure (psi):\u003c\/strong\u003e 100\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Setting (°F):\u003c\/strong\u003e 210\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eASME Code Rating:\u003c\/strong\u003e ASME Section XIII (HV)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Commercial Water Heater\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermostat \/ Element Length (in.):\u003c\/strong\u003e 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Length:\u003c\/strong\u003e Standard\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnection Configuration:\u003c\/strong\u003e FNPT inlet x FNPT outlet\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomatic Reseating:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManual Test Lever:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApproved for Potable Water:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSentryPlus Alert Flood Sensor:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Watts","offers":[{"title":"Default Title","offer_id":54935734026539,"sku":"F254369","price":476.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0277\/3168\/9577\/files\/906e3ec705200797b6426d2ac3a49809dcd45273_21d55865-8f77-4721-9280-2c2d450c4854.jpg?v=1785985305","url":"https:\/\/citysupplygroup.com\/products\/watts-f254369","provider":"City Supply","version":"1.0","type":"link"}