{"product_id":"watts-f121504-lead-free-relief-valve-125-psi-1-inch-nptf","title":"Watts f121504 Lead Free Relief Valve 125 Psi 1 Inch Nptf","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe WATTS f121504 is a lead free pressure relief valve designed to protect hot water space heating boilers from excessive pressure buildup. Built on the LF174A series platform, it features a lead free copper silicon alloy body with a 1 inch NPTF female threaded inlet and outlet, a 125 psi pressure relief setpoint, and a non-metallic disc-to-metal seating arrangement for reliable shutoff. The valve includes a nonrestrictive discharge drain line flood sensor with SentryPlus Alert technology that detects excessive water discharges from the relief valve, enabling early warning before a problem escalates. Licensed plumbers and hydronic heating technicians are the typical installers for this component.\u003c\/p\u003e\n\u003cp\u003eThis relief valve is suited for residential and light commercial hot water space heating boiler systems where lead free compliance and pressure protection are required. The integrated flood sensor connectivity allows the valve to interface with existing building management systems or the Watts Cellular Gateway when paired with a separately purchased activation kit. It is a direct-fit solution for boiler installations requiring a 1 inch NPTF threaded relief valve with smart monitoring capability.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eLead free copper silicon alloy body meets lead free installation requirements\u003c\/li\u003e\n  \u003cli\u003e125 psi pressure relief setpoint protects boiler systems from overpressure\u003c\/li\u003e\n  \u003cli\u003e1 inch NPTF female threaded inlet and outlet for standard pipe connections\u003c\/li\u003e\n  \u003cli\u003eNon-metallic disc-to-metal seating provides reliable sealing performance\u003c\/li\u003e\n  \u003cli\u003eTest lever allows field verification of valve operation without system shutdown\u003c\/li\u003e\n  \u003cli\u003eSentryPlus Alert flood sensor detects excessive discharge and supports BMS or cellular gateway integration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for hot water space heating boiler applications requiring a 1 inch NPTF female threaded pressure relief valve with a 125 psi relief setpoint. Flood sensor activation requires a separately purchased Watts activation kit, compatible with existing building management systems or the Watts Cellular Gateway.\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 the applicable provisions of the International Plumbing Code (IPC). Shut down the boiler and relieve system pressure before removing or installing any relief valve. Do not plug, cap, or restrict the discharge outlet at any time. Connect the discharge line to an appropriate drain location per code requirements before placing the system back in service.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: LF174A\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePressure Relief Setting\u003c\/strong\u003e: 125 psi\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Working Pressure\u003c\/strong\u003e: 93 psi\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInlet Connection Size\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInlet Connection Type\u003c\/strong\u003e: Female Threaded\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInlet Thread Type\u003c\/strong\u003e: NPTF\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutlet Connection Size\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutlet Connection Type\u003c\/strong\u003e: Female Threaded\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutlet Thread Type\u003c\/strong\u003e: NPTF\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody Material\u003c\/strong\u003e: Lead Free Copper Silicon Alloy\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLead Free\u003c\/strong\u003e: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 30.60 pounds\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: f121504\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"WATTS","offers":[{"title":"Default Title","offer_id":51233513308466,"sku":"F121504","price":769.18,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/307627026.jpg?v=1780101877","url":"https:\/\/voomisupply.com\/products\/watts-f121504-lead-free-relief-valve-125-psi-1-inch-nptf","provider":"Voomi Supply","version":"1.0","type":"link"}