{"product_id":"watts-1-1-4-740-075-water-pressure-safety-relief-valve-740-075-740075","title":"WATTS 1-1\/4\"-740-075 WATER PRESSURE SAFETY RELIEF VALVE 740-075 740075","description":"\u003ch3 data-section-id=\"17lc1ru\" data-start=\"0\" data-end=\"16\"\u003eDescription:\u003c\/h3\u003e\n\u003cp data-start=\"17\" data-end=\"648\"\u003eThe Watts 740-075 Water Pressure Safety Relief Valve is a 1-1\/4 inch pressure-only relief valve used in hot water space heating boiler systems to protect equipment from excessive pressure conditions. Commonly installed in commercial boilers, hydronic heating systems, mechanical rooms, district heating equipment, industrial process heating systems, and institutional boiler plants. Maintenance personnel, boiler contractors, OEMs, and facility operators use this valve for safety compliance, preventive maintenance, system upgrades, and replacement of existing boiler pressure relief devices. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"5ms9th\" data-start=\"650\" data-end=\"667\"\u003eApplications:\u003c\/h3\u003e\n\u003cp data-start=\"668\" data-end=\"1410\"\u003eThe Watts 740-075 is commonly used in commercial and industrial hot water boiler systems, hydronic heating networks, central heating plants, educational facilities, hospitals, government buildings, manufacturing facilities, apartment complexes, hotels, mechanical equipment rooms, district energy systems, and process heating applications. The valve provides automatic overpressure protection for boilers and associated heating equipment by relieving excess system pressure before damage can occur. It is designed for hot water space-heating applications where ASME-compliant pressure relief protection is required to safeguard boilers, piping, heat exchangers, pumps, and related heating infrastructure. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"5hg6bl\" data-start=\"1412\" data-end=\"1441\"\u003eTechnical Specifications:\u003c\/h3\u003e\n\u003cp data-start=\"1442\" data-end=\"2232\"\u003e• Manufacturer Part Number (MPN): 740-075 \/ 740075\u003cbr data-start=\"1492\" data-end=\"1495\"\u003e• Brand: Watts\u003cbr data-start=\"1509\" data-end=\"1512\"\u003e• Product Type: Water Pressure Safety Relief Valve\u003cbr data-start=\"1562\" data-end=\"1565\"\u003e• Series: 740\u003cbr data-start=\"1578\" data-end=\"1581\"\u003e• Valve Size: 1-1\/4 in.\u003cbr data-start=\"1604\" data-end=\"1607\"\u003e• Inlet Connection Size: 1-1\/4 in. Female NPT\u003cbr data-start=\"1652\" data-end=\"1655\"\u003e• Outlet Connection Size: 1-1\/2 in. Female NPT\u003cbr data-start=\"1701\" data-end=\"1704\"\u003e• Body Material: Iron\u003cbr data-start=\"1725\" data-end=\"1728\"\u003e• Pressure Relief Setting: 75 PSI\u003cbr data-start=\"1761\" data-end=\"1764\"\u003e• Pressure Range: 30–75 PSI\u003cbr data-start=\"1791\" data-end=\"1794\"\u003e• Operation: Spring Loaded\u003cbr data-start=\"1820\" data-end=\"1823\"\u003e• Reseating Type: Automatic Reseating\u003cbr data-start=\"1860\" data-end=\"1863\"\u003e• Seat Design: Non-Metallic Disc-to-Metal Seating\u003cbr data-start=\"1912\" data-end=\"1915\"\u003e• Spring Material: Stainless Steel\u003cbr data-start=\"1949\" data-end=\"1952\"\u003e• Test Lever: Included\u003cbr data-start=\"1974\" data-end=\"1977\"\u003e• Application: Hot Water Space Heating Boilers\u003cbr data-start=\"2023\" data-end=\"2026\"\u003e• Feature: Expanded Outlet Design\u003cbr data-start=\"2059\" data-end=\"2062\"\u003e• Service: Boiler Overpressure Protection\u003cbr data-start=\"2103\" data-end=\"2106\"\u003e• Maximum Working Pressure: 56 PSI\u003cbr data-start=\"2140\" data-end=\"2143\"\u003e• Installation: Inline Boiler Safety Relief Service \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"1cz0398\" data-start=\"2234\" data-end=\"2258\"\u003eCommon Replacements:\u003c\/h3\u003e\n\u003cp data-start=\"2259\" data-end=\"2456\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e• Watts 740 075 FS 1-1\/4 (F383484) \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"2331\" data-end=\"2334\"\u003e• Watts 374A Boiler Pressure Relief Valve\u003cbr data-start=\"2375\" data-end=\"2378\"\u003e• Watts 335 Boiler Pressure Relief Valve\u003c\/p\u003e","brand":"WATTS","offers":[{"title":"New","offer_id":51731245039918,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_ba1a595c-b8ed-4c2c-833d-5f59e6203648.jpg?v=1770595791","url":"https:\/\/plgautomation.com\/products\/watts-1-1-4-740-075-water-pressure-safety-relief-valve-740-075-740075","provider":"PLG Automation ","version":"1.0","type":"link"}