{"product_id":"watts-water-technologies-m335m2-030-pressure-relief-valve","title":"Watts Water Technologies M335M2-030 Pressure Relief Valve","description":"\u003ch3 data-section-id=\"17lc1ru\" data-start=\"0\" data-end=\"16\"\u003eDescription:\u003c\/h3\u003e\n\u003cp data-start=\"17\" data-end=\"757\"\u003eThe Watts M335M2-030 Pressure Relief Valve is a 3\/4 inch boiler safety relief valve designed to provide automatic overpressure protection in low-pressure hot water and steam heating systems with a factory-set relief pressure of 30 PSI. Commonly installed in commercial and industrial boilers, hydronic heating systems, steam heating equipment, process heating systems, and mechanical room installations requiring ASME-compliant pressure relief protection. Maintenance technicians, boiler contractors, facility engineers, and system integrators use this valve for safety compliance, replacement projects, preventive maintenance, and new boiler installations requiring dependable overpressure protection. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"5ms9th\" data-start=\"759\" data-end=\"776\"\u003eApplications:\u003c\/h3\u003e\n\u003cp data-start=\"777\" data-end=\"1638\"\u003eThe Watts M335M2-030 Pressure Relief Valve is widely used in commercial boiler plants, industrial steam heating systems, hydronic heating networks, manufacturing facilities, schools, hospitals, universities, apartment complexes, hotels, government buildings, process heating equipment, heat exchanger systems, district heating installations, and mechanical equipment rooms. The valve automatically opens when system pressure exceeds the 30 PSI set point, helping protect boilers, piping, pumps, expansion tanks, and associated heating equipment from potentially damaging overpressure conditions. It is commonly specified in low-pressure steam and hot water heating applications where reliable safety protection is required to maintain system integrity, comply with safety regulations, and safeguard personnel and equipment. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"5hg6bl\" data-start=\"1640\" data-end=\"1669\"\u003eTechnical Specifications:\u003c\/h3\u003e\n\u003cp data-start=\"1670\" data-end=\"2537\"\u003e• Manufacturer Part Number (MPN): M335M2-030\u003cbr data-start=\"1714\" data-end=\"1717\"\u003e• Ordering Code: 0342692\u003cbr data-start=\"1741\" data-end=\"1744\"\u003e• Brand: Watts\u003cbr data-start=\"1758\" data-end=\"1761\"\u003e• Product Type: Boiler Pressure Relief Valve\u003cbr data-start=\"1805\" data-end=\"1808\"\u003e• Series: 335\u003cbr data-start=\"1821\" data-end=\"1824\"\u003e• Valve Size: 3\/4 in.\u003cbr data-start=\"1845\" data-end=\"1848\"\u003e• Inlet Connection: 3\/4 in. Male NPT\u003cbr data-start=\"1884\" data-end=\"1887\"\u003e• Outlet Connection: 3\/4 in. Female NPT\u003cbr data-start=\"1926\" data-end=\"1929\"\u003e• Pressure Relief Setting: 30 PSI\u003cbr data-start=\"1962\" data-end=\"1965\"\u003e• Pressure Rating: ASME Section IV\u003cbr data-start=\"1999\" data-end=\"2002\"\u003e• Body Material: Bronze\u003cbr data-start=\"2025\" data-end=\"2028\"\u003e• Spring Material: Stainless Steel\u003cbr data-start=\"2062\" data-end=\"2065\"\u003e• Seat Design: Non-Stick Teflon Disc-to-Metal Seating\u003cbr data-start=\"2118\" data-end=\"2121\"\u003e• Maximum Operating Temperature: 250°F\u003cbr data-start=\"2159\" data-end=\"2162\"\u003e• Steam Discharge Capacity: 510,000 BTU\/hr\u003cbr data-start=\"2204\" data-end=\"2207\"\u003e• Protection Type: Pressure Relief Only\u003cbr data-start=\"2246\" data-end=\"2249\"\u003e• Stem Design: Top-Guided Stem\u003cbr data-start=\"2279\" data-end=\"2282\"\u003e• Feature: High Heat Resistant Silicone Disc\u003cbr data-start=\"2326\" data-end=\"2329\"\u003e• Application: Low Pressure Steam and Hot Water Boilers\u003cbr data-start=\"2384\" data-end=\"2387\"\u003e• Service Environment: Commercial and Industrial Heating Systems\u003cbr data-start=\"2451\" data-end=\"2454\"\u003e• Function: Automatic Overpressure Protection \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"1cz0398\" data-start=\"2539\" data-end=\"2563\"\u003eCommon Replacements:\u003c\/h3\u003e\n\u003cp data-start=\"2564\" data-end=\"2750\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e• Watts 335M2-030 3\/4\" Female Pressure Relief Valve\u003cbr data-start=\"2615\" data-end=\"2618\"\u003e• Watts 374A 3\/4\" Boiler Pressure Relief Valve\u003cbr data-start=\"2664\" data-end=\"2667\"\u003e• Watts M375M2-030 3\/4\" Pressure Relief Valve\u003c\/p\u003e","brand":"Watts","offers":[{"title":"New","offer_id":51731235406126,"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_67765893-b567-4b72-aa4e-b5980071d9bb.jpg?v=1770595761","url":"https:\/\/plgautomation.com\/products\/watts-water-technologies-m335m2-030-pressure-relief-valve","provider":"PLG Automation ","version":"1.0","type":"link"}