{"product_id":"watts-3-4-pressure-relief-valves-008091f-007224f","title":"WATTS Pressure Relief Valves for Water Heaters \u0026 Water Boilers - USA","description":"\u003cp\u003e\u003cstrong\u003eHeavy-duty pressure protection for water heaters and water boilers.\u003c\/strong\u003e WATTS pressure relief valves help protect compatible hot-water equipment against excessive pressure. Made in USA. Choose the 3\/4-inch, 125 PSI variant that matches your equipment’s connection and required relieving capacity.\u003c\/p\u003e\u003ch3\u003eCompare the two variants\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003e008091F — Smaller\u003c\/th\u003e\n\u003cth\u003e007224F — Larger\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eWatts marking on supplied valve\u003c\/td\u003e\n\u003ctd\u003e3L-M7\u003c\/td\u003e\n\u003ctd\u003eLF474A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInlet \/ outlet size\u003c\/td\u003e\n\u003ctd\u003e3\/4 inch \/ 3\/4 inch\u003c\/td\u003e\n\u003ctd\u003e3\/4 inch \/ 3\/4 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnection\u003c\/td\u003e\n\u003ctd\u003eMale NPT inlet, female NPT outlet\u003c\/td\u003e\n\u003ctd\u003eFemale inlet, female outlet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePressure setting\u003c\/td\u003e\n\u003ctd\u003e125 PSI (about 8.6 bar)\u003c\/td\u003e\n\u003ctd\u003e125 PSI (8.61 bar)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelieving capacity\u003c\/td\u003e\n\u003ctd\u003e314,000 BTU\/hr at 125 PSI (ASME)\u003c\/td\u003e\n\u003ctd\u003e1,700,000 BTU\/hr\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eBrass body, stainless steel spring, silicone disc\u003c\/td\u003e\n\u003ctd\u003eLead-free bronze body, non-metallic disc-to-metal seat\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTest lever\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eDomestic storage tanks and tankless water heaters\u003c\/td\u003e\n\u003ctd\u003eHot-water boiler pressure protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eProduct details\u003c\/h3\u003e\u003cp\u003eThe compact 3L valve provides pressure-only relief without a temperature-sensing element. Watts lists the 3L family to ASME Section IV and ANSI Z21.22\/CSA 4.4.\u003c\/p\u003e\u003cp\u003eThe higher-capacity LF474A has an elevated seat and a water seal that isolates its spring working parts from discharge water. Watts specifies a maximum temperature of 250°F (121°C) and maximum system operating pressure of 75% of its set pressure.\u003c\/p\u003e\u003ch3\u003eInstallation overview\u003c\/h3\u003e\u003cp\u003eConnect the relief valve directly to the protected equipment without an intervening isolating valve. Run a full-size, unrestricted discharge pipe downward to a safe, visible disposal point. For the 3L, Watts specifies an open pipe end and an air gap of at least 6 inches (152 mm) above the building drain or approved discharge location. Do not connect the outlet directly to a sewer.\u003c\/p\u003e\u003cp\u003eThese are emergency safety devices, not operating controls. The illustration is a conceptual overview; follow the exact equipment manual, Watts instructions and local plumbing requirements.\u003c\/p\u003e\u003ch3\u003eManufacturer references\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.watts.com\/dfsmedia\/0533dbba17714b1ab581ab07a4cbb521\/20234-source\/639250050400000000\/es-3l-53l-pdf.pdf\" target=\"_blank\" rel=\"noopener\"\u003eWatts 3L specification sheet\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.watts.com\/dfsmedia\/0533dbba17714b1ab581ab07a4cbb521\/56302-source\/es-lf474a\" target=\"_blank\" rel=\"noopener\"\u003eWatts LF474A specification sheet\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.watts.com\/dfsmedia\/0533dbba17714b1ab581ab07a4cbb521\/55927-source\/639221274110000000\/tag-3l-rwh.pdf\" target=\"_blank\" rel=\"noopener\"\u003eWatts 3L installation instructions\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003csmall\u003eWatts family identification follows the markings in the supplied photos; 008091F and 007224F are the supplied service-part references.\u003c\/small\u003e\u003c\/p\u003e","brand":"Made for Water","offers":[{"title":"008091F — Smaller","offer_id":67650297463097,"sku":"008091F","price":2500.0,"currency_code":"EGP","in_stock":true},{"title":"007224F — Larger","offer_id":67650297495865,"sku":null,"price":2750.0,"currency_code":"EGP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1008\/7619\/0009\/files\/watts-008091f-enhanced.png?v=1791811977","url":"https:\/\/madeforwater.shop\/products\/watts-3-4-pressure-relief-valves-008091f-007224f","provider":"Made for Water","version":"1.0","type":"link"}