{"product_id":"spring-safety-valve-full-lift-pn16-flanged-dn25-dn100","title":"Spring Safety Valve – Full Lift PN16 Flanged | DN25–DN100","description":"\u003cp data-start=\"448\" data-end=\"716\"\u003eFull lift spring safety valves are designed to rapidly release excess pressure in pressurized systems. When the system pressure reaches the preset set pressure, the valve opens fully in a pop-action movement, providing high discharge capacity for fast pressure relief.\u003c\/p\u003e\n\u003cp data-start=\"718\" data-end=\"912\"\u003eThese valves are commonly used in \u003cstrong data-start=\"752\" data-end=\"819\"\u003esteam systems, gas pipelines and high-capacity pressure vessels\u003c\/strong\u003e where rapid pressure release is required to protect the system from overpressure conditions.\u003c\/p\u003e\n\u003cp data-start=\"914\" data-end=\"1179\"\u003eThe valve body is typically manufactured from \u003cstrong data-start=\"960\" data-end=\"984\"\u003eductile iron (GGG40)\u003c\/strong\u003e while internal components such as the spring and moving elements are made from \u003cstrong data-start=\"1064\" data-end=\"1100\"\u003estainless steel (AISI 302 \/ 304)\u003c\/strong\u003e. Depending on the design, sealing surfaces may be \u003cstrong data-start=\"1151\" data-end=\"1178\"\u003emetal seat or PTFE seat\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"1181\" data-end=\"1454\"\u003eFull lift safety valves are designed according to \u003cstrong data-start=\"1231\" data-end=\"1272\"\u003eISO 4126 safety valve design standard\u003c\/strong\u003e and tested according to \u003cstrong data-start=\"1297\" data-end=\"1337\"\u003eEN 12266-1 pressure testing standard\u003c\/strong\u003e. Most industrial models are manufactured in \u003cstrong data-start=\"1382\" data-end=\"1453\"\u003ePN16 pressure class with flanged connections according to EN 1092-2\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"1456\" data-end=\"1567\"\u003eIn many designs, the \u003cstrong data-start=\"1477\" data-end=\"1522\"\u003eoutlet size is larger than the inlet size\u003c\/strong\u003e to increase discharge capacity. For example:\u003c\/p\u003e\n\u003cp data-start=\"1569\" data-end=\"1622\"\u003eDN25 inlet → DN40 outlet\u003cbr data-start=\"1593\" data-end=\"1596\"\u003eDN32 inlet → DN50 outlet\u003c\/p\u003e\n\u003cp data-start=\"1624\" data-end=\"1729\"\u003eThis design ensures higher flow capacity and improved safety performance in pressure relief applications.\u003c\/p\u003e\n\u003cp data-start=\"1731\" data-end=\"1760\"\u003eTypical applications include:\u003c\/p\u003e\n\u003cul data-start=\"1762\" data-end=\"1891\"\u003e\n\u003cli data-section-id=\"149zega\" data-start=\"1762\" data-end=\"1779\"\u003e\n\u003cp data-start=\"1764\" data-end=\"1779\"\u003eSteam boilers\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1hf4m10\" data-start=\"1780\" data-end=\"1800\"\u003e\n\u003cp data-start=\"1782\" data-end=\"1800\"\u003ePressure vessels\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"4r7ky8\" data-start=\"1801\" data-end=\"1831\"\u003e\n\u003cp data-start=\"1803\" data-end=\"1831\"\u003eIndustrial steam pipelines\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"ekcp1n\" data-start=\"1832\" data-end=\"1847\"\u003e\n\u003cp data-start=\"1834\" data-end=\"1847\"\u003eGas systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1f0w6j3\" data-start=\"1848\" data-end=\"1891\"\u003e\n\u003cp data-start=\"1850\" data-end=\"1891\"\u003eHigh-capacity pressure protection systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1893\" data-end=\"1896\"\u003e\n\u003ch1 data-section-id=\"zjxypn\" data-start=\"1898\" data-end=\"1924\"\u003eTechnical Specifications\u003c\/h1\u003e\n\u003cdiv class=\"TyagGW_tableContainer\"\u003e\n\u003cdiv class=\"group TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable data-start=\"1926\" data-end=\"2351\" class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead data-start=\"1926\" data-end=\"1955\"\u003e\n\u003ctr data-start=\"1926\" data-end=\"1955\"\u003e\n\u003cth data-start=\"1926\" data-end=\"1938\" data-col-size=\"sm\" class=\"\"\u003eParameter\u003c\/th\u003e\n\u003cth data-start=\"1938\" data-end=\"1955\" data-col-size=\"sm\" class=\"\"\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody data-start=\"1966\" data-end=\"2351\"\u003e\n\u003ctr data-start=\"1966\" data-end=\"2000\"\u003e\n\u003ctd data-start=\"1966\" data-end=\"1977\" data-col-size=\"sm\"\u003eValve Type\u003c\/td\u003e\n\u003ctd data-start=\"1977\" data-end=\"2000\" data-col-size=\"sm\"\u003eSpring Safety Valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2001\" data-end=\"2037\"\u003e\n\u003ctd data-start=\"2001\" data-end=\"2011\" data-col-size=\"sm\"\u003eLift Type\u003c\/td\u003e\n\u003ctd data-start=\"2011\" data-end=\"2037\" data-col-size=\"sm\"\u003eFull Lift (Pop Action)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2038\" data-end=\"2065\"\u003e\n\u003ctd data-start=\"2038\" data-end=\"2054\" data-col-size=\"sm\"\u003eConnection Type\u003c\/td\u003e\n\u003ctd data-start=\"2054\" data-end=\"2065\" data-col-size=\"sm\"\u003eFlanged\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2066\" data-end=\"2095\"\u003e\n\u003ctd data-start=\"2066\" data-end=\"2082\" data-col-size=\"sm\"\u003eFlange Standard\u003c\/td\u003e\n\u003ctd data-start=\"2082\" data-end=\"2095\" data-col-size=\"sm\"\u003eEN 1092-2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2096\" data-end=\"2119\"\u003e\n\u003ctd data-start=\"2096\" data-end=\"2111\" data-col-size=\"sm\"\u003ePressure Class\u003c\/td\u003e\n\u003ctd data-start=\"2111\" data-end=\"2119\" data-col-size=\"sm\"\u003ePN16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2120\" data-end=\"2148\"\u003e\n\u003ctd data-start=\"2120\" data-end=\"2136\" data-col-size=\"sm\"\u003eDesign Standard\u003c\/td\u003e\n\u003ctd data-start=\"2136\" data-end=\"2148\" data-col-size=\"sm\"\u003eISO 4126\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2149\" data-end=\"2177\"\u003e\n\u003ctd data-start=\"2149\" data-end=\"2163\" data-col-size=\"sm\"\u003eTest Standard\u003c\/td\u003e\n\u003ctd data-start=\"2163\" data-end=\"2177\" data-col-size=\"sm\"\u003eEN 12266-1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2178\" data-end=\"2216\"\u003e\n\u003ctd data-start=\"2178\" data-end=\"2192\" data-col-size=\"sm\"\u003eBody Material\u003c\/td\u003e\n\u003ctd data-start=\"2192\" data-end=\"2216\" data-col-size=\"sm\"\u003eDuctile Iron (GGG40)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2217\" data-end=\"2273\"\u003e\n\u003ctd data-start=\"2217\" data-end=\"2237\" data-col-size=\"sm\"\u003eInternal Components\u003c\/td\u003e\n\u003ctd data-start=\"2237\" data-end=\"2273\" data-col-size=\"sm\"\u003eStainless Steel (AISI 302 \/ 304)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2274\" data-end=\"2300\"\u003e\n\u003ctd data-start=\"2274\" data-end=\"2284\" data-col-size=\"sm\"\u003eSeat Type\u003c\/td\u003e\n\u003ctd data-start=\"2284\" data-end=\"2300\" data-col-size=\"sm\"\u003eMetal \/ PTFE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2301\" data-end=\"2351\"\u003e\n\u003ctd data-start=\"2301\" data-end=\"2313\" data-col-size=\"sm\"\u003eApplication\u003c\/td\u003e\n\u003ctd data-start=\"2313\" data-end=\"2351\" data-col-size=\"sm\"\u003eSteam \/ Gas \/ High Capacity Relief\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003chr data-start=\"2353\" data-end=\"2356\"\u003e\n\u003ch1 data-section-id=\"6pjocd\" data-start=\"2358\" data-end=\"2370\"\u003eSize Table\u003c\/h1\u003e\n\u003cdiv class=\"TyagGW_tableContainer\"\u003e\n\u003cdiv class=\"group TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable data-start=\"2372\" data-end=\"2508\" class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead data-start=\"2372\" data-end=\"2396\"\u003e\n\u003ctr data-start=\"2372\" data-end=\"2396\"\u003e\n\u003cth data-start=\"2372\" data-end=\"2383\" data-col-size=\"sm\" class=\"\"\u003eInlet DN\u003c\/th\u003e\n\u003cth data-start=\"2383\" data-end=\"2396\" data-col-size=\"sm\" class=\"\"\u003eOutlet DN\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody data-start=\"2407\" data-end=\"2508\"\u003e\n\u003ctr data-start=\"2407\" data-end=\"2420\"\u003e\n\u003ctd data-start=\"2407\" data-end=\"2412\" data-col-size=\"sm\"\u003eDN25\u003c\/td\u003e\n\u003ctd data-start=\"2412\" data-end=\"2420\" data-col-size=\"sm\"\u003eDN40\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2421\" data-end=\"2434\"\u003e\n\u003ctd data-start=\"2421\" data-end=\"2426\" data-col-size=\"sm\"\u003eDN32\u003c\/td\u003e\n\u003ctd data-start=\"2426\" data-end=\"2434\" data-col-size=\"sm\"\u003eDN50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2435\" data-end=\"2448\"\u003e\n\u003ctd data-start=\"2435\" data-end=\"2440\" data-col-size=\"sm\"\u003eDN40\u003c\/td\u003e\n\u003ctd data-start=\"2440\" data-end=\"2448\" data-col-size=\"sm\"\u003eDN65\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2449\" data-end=\"2462\"\u003e\n\u003ctd data-start=\"2449\" data-end=\"2454\" data-col-size=\"sm\"\u003eDN50\u003c\/td\u003e\n\u003ctd data-start=\"2454\" data-end=\"2462\" data-col-size=\"sm\"\u003eDN80\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2463\" data-end=\"2477\"\u003e\n\u003ctd data-start=\"2463\" data-end=\"2468\" data-col-size=\"sm\"\u003eDN65\u003c\/td\u003e\n\u003ctd data-start=\"2468\" data-end=\"2477\" data-col-size=\"sm\"\u003eDN100\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2478\" data-end=\"2492\"\u003e\n\u003ctd data-start=\"2478\" data-end=\"2483\" data-col-size=\"sm\"\u003eDN80\u003c\/td\u003e\n\u003ctd data-start=\"2483\" data-end=\"2492\" data-col-size=\"sm\"\u003eDN125\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2493\" data-end=\"2508\"\u003e\n\u003ctd data-start=\"2493\" data-end=\"2499\" data-col-size=\"sm\"\u003eDN100\u003c\/td\u003e\n\u003ctd data-start=\"2499\" data-end=\"2508\" data-col-size=\"sm\"\u003eDN150\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003chr data-start=\"2510\" data-end=\"2513\"\u003e\n\u003ch1 data-section-id=\"ntm4p9\" data-start=\"2515\" data-end=\"2525\"\u003eMaterial\u003c\/h1\u003e\n\u003cdiv class=\"relative w-full mt-4 mb-1\"\u003e\n\u003cdiv class=\"\"\u003e\n\u003cdiv class=\"relative\"\u003e\n\u003cdiv class=\"h-full min-h-0 min-w-0\"\u003e\n\u003cdiv class=\"h-full min-h-0 min-w-0\"\u003e\n\u003cdiv class=\"border border-token-border-light border-radius-3xl corner-superellipse\/1.1 rounded-3xl\"\u003e\n\u003cdiv class=\"h-full w-full border-radius-3xl bg-token-bg-elevated-secondary corner-superellipse\/1.1 overflow-clip rounded-3xl lxnfua_clipPathFallback\"\u003e\n\u003cdiv class=\"pe-11 pt-3\"\u003e\n\u003cdiv class=\"relative z-0 flex max-w-full\"\u003e\n\u003cdiv id=\"code-block-viewer\" dir=\"ltr\" class=\"q9tKkq_viewer cm-editor z-10 light:cm-light dark:cm-light flex h-full w-full flex-col items-stretch ͼ5 ͼj\"\u003e\n\u003cdiv class=\"cm-scroller\"\u003e\n\u003cdiv class=\"cm-content q9tKkq_readonly\"\u003e\n\u003cspan\u003eGGG40 Ductile Iron Body\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eStainless Steel Internal Parts\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Heytigo","offers":[{"title":"DN25 \/ DN40 \/ Flanged PN16","offer_id":53164827377978,"sku":"HYT25000EVE000000017","price":740.0,"currency_code":"USD","in_stock":true},{"title":"DN25 \/ DN50 \/ Flanged PN16","offer_id":53164827410746,"sku":"HYT25000EVE000000018","price":790.0,"currency_code":"USD","in_stock":true},{"title":"DN25 \/ DN65 \/ Flanged PN16","offer_id":53164827443514,"sku":"HYT25000EVE000000019","price":850.0,"currency_code":"USD","in_stock":true},{"title":"DN25 \/ DN80 \/ Flanged PN16","offer_id":53164827476282,"sku":"HYT25000EVE000000020","price":960.0,"currency_code":"USD","in_stock":true},{"title":"DN25 \/ DN100 \/ Flanged PN16","offer_id":53164827509050,"sku":"HYT25000EVE000000021","price":1050.0,"currency_code":"USD","in_stock":true},{"title":"DN25 \/ DN125 \/ Flanged PN16","offer_id":53164827541818,"sku":"HYT25000EVE000000022","price":1200.0,"currency_code":"USD","in_stock":true},{"title":"DN25 \/ DN150 \/ Flanged PN16","offer_id":53164827574586,"sku":"HYT25000EVE000000023","price":1450.0,"currency_code":"USD","in_stock":true},{"title":"DN32 \/ DN40 \/ Flanged PN16","offer_id":53164827607354,"sku":"HYT25000EVE000000024","price":800.0,"currency_code":"USD","in_stock":true},{"title":"DN32 \/ DN50 \/ Flanged PN16","offer_id":53164827640122,"sku":"HYT25000EVE000000025","price":865.0,"currency_code":"USD","in_stock":true},{"title":"DN32 \/ DN65 \/ Flanged PN16","offer_id":53164827672890,"sku":"HYT25000EVE000000026","price":980.0,"currency_code":"USD","in_stock":true},{"title":"DN32 \/ DN80 \/ Flanged PN16","offer_id":53164827705658,"sku":"HYT25000EVE000000027","price":1150.0,"currency_code":"USD","in_stock":true},{"title":"DN32 \/ DN100 \/ Flanged PN16","offer_id":53164827738426,"sku":"HYT25000EVE000000028","price":1230.0,"currency_code":"USD","in_stock":true},{"title":"DN32 \/ DN125 \/ Flanged PN16","offer_id":53164827771194,"sku":"HYT25000EVE000000029","price":1290.0,"currency_code":"USD","in_stock":true},{"title":"DN32 \/ DN150 \/ Flanged PN16","offer_id":53164827803962,"sku":"HYT25000EVE000000030","price":1360.0,"currency_code":"USD","in_stock":true},{"title":"DN40 \/ DN40 \/ Flanged PN16","offer_id":53164827836730,"sku":"HYT25000EVE000000031","price":810.0,"currency_code":"USD","in_stock":true},{"title":"DN40 \/ DN50 \/ Flanged PN16","offer_id":53164827869498,"sku":"HYT25000EVE000000032","price":950.0,"currency_code":"USD","in_stock":true},{"title":"DN40 \/ DN65 \/ Flanged PN16","offer_id":53164827902266,"sku":"HYT25000EVE000000033","price":1230.0,"currency_code":"USD","in_stock":true},{"title":"DN40 \/ DN80 \/ Flanged PN16","offer_id":53164827935034,"sku":"HYT25000EVE000000034","price":1260.0,"currency_code":"USD","in_stock":true},{"title":"DN40 \/ DN100 \/ Flanged PN16","offer_id":53164827967802,"sku":"HYT25000EVE000000035","price":1300.0,"currency_code":"USD","in_stock":true},{"title":"DN40 \/ DN125 \/ Flanged PN16","offer_id":53164828000570,"sku":"HYT25000EVE000000036","price":1450.0,"currency_code":"USD","in_stock":true},{"title":"DN40 \/ DN150 \/ Flanged PN16","offer_id":53164828033338,"sku":"HYT25000EVE000000037","price":1590.0,"currency_code":"USD","in_stock":true},{"title":"DN50 \/ DN40 \/ Flanged PN16","offer_id":53164828066106,"sku":"HYT25000EVE000000038","price":847.0,"currency_code":"USD","in_stock":true},{"title":"DN50 \/ DN50 \/ Flanged PN16","offer_id":53164828098874,"sku":"HYT25000EVE000000039","price":990.0,"currency_code":"USD","in_stock":true},{"title":"DN50 \/ DN65 \/ Flanged PN16","offer_id":53164828131642,"sku":"HYT25000EVE000000040","price":1295.0,"currency_code":"USD","in_stock":true},{"title":"DN50 \/ DN80 \/ Flanged PN16","offer_id":53164828164410,"sku":"HYT25000EVE000000041","price":1360.0,"currency_code":"USD","in_stock":true},{"title":"DN50 \/ DN100 \/ Flanged PN16","offer_id":53164828197178,"sku":"HYT25000EVE000000042","price":1480.0,"currency_code":"USD","in_stock":true},{"title":"DN50 \/ DN125 \/ Flanged PN16","offer_id":53164828229946,"sku":"HYT25000EVE000000043","price":1510.0,"currency_code":"USD","in_stock":true},{"title":"DN50 \/ DN150 \/ Flanged PN16","offer_id":53164828262714,"sku":"HYT25000EVE000000044","price":1600.0,"currency_code":"USD","in_stock":true},{"title":"DN65 \/ DN40 \/ Flanged PN16","offer_id":53164828295482,"sku":"HYT25000EVE000000045","price":930.0,"currency_code":"USD","in_stock":true},{"title":"DN65 \/ DN50 \/ Flanged PN16","offer_id":53164828328250,"sku":"HYT25000EVE000000046","price":1150.0,"currency_code":"USD","in_stock":true},{"title":"DN65 \/ DN65 \/ Flanged PN16","offer_id":53164828361018,"sku":"HYT25000EVE000000047","price":1400.0,"currency_code":"USD","in_stock":true},{"title":"DN65 \/ DN80 \/ Flanged PN16","offer_id":53164828393786,"sku":"HYT25000EVE000000048","price":1550.0,"currency_code":"USD","in_stock":true},{"title":"DN65 \/ DN100 \/ Flanged PN16","offer_id":53164828426554,"sku":"HYT25000EVE000000049","price":1700.0,"currency_code":"USD","in_stock":true},{"title":"DN65 \/ DN125 \/ Flanged PN16","offer_id":53164828459322,"sku":"HYT25000EVE000000050","price":1790.0,"currency_code":"USD","in_stock":true},{"title":"DN65 \/ DN150 \/ Flanged PN16","offer_id":53164828492090,"sku":"HYT25000EVE000000051","price":1830.0,"currency_code":"USD","in_stock":true},{"title":"DN80 \/ DN40 \/ Flanged PN16","offer_id":53164828524858,"sku":"HYT25000EVE000000052","price":1200.0,"currency_code":"USD","in_stock":true},{"title":"DN80 \/ DN50 \/ Flanged PN16","offer_id":53164828557626,"sku":"HYT25000EVE000000053","price":1390.0,"currency_code":"USD","in_stock":true},{"title":"DN80 \/ DN65 \/ Flanged PN16","offer_id":53164828590394,"sku":"HYT25000EVE000000054","price":1485.0,"currency_code":"USD","in_stock":true},{"title":"DN80 \/ DN80 \/ Flanged PN16","offer_id":53164828623162,"sku":"HYT25000EVE000000055","price":1600.0,"currency_code":"USD","in_stock":true},{"title":"DN80 \/ DN100 \/ Flanged PN16","offer_id":53164828655930,"sku":"HYT25000EVE000000056","price":1850.0,"currency_code":"USD","in_stock":true},{"title":"DN80 \/ DN125 \/ Flanged PN16","offer_id":53164828688698,"sku":"HYT25000EVE000000057","price":1990.0,"currency_code":"USD","in_stock":true},{"title":"DN80 \/ DN150 \/ Flanged PN16","offer_id":53164828721466,"sku":"HYT25000EVE000000058","price":2200.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/8981\/4074\/files\/9a0ba717-50b4-4dbc-8608-f6edb9e590b2.jpg?v=1762163228","url":"https:\/\/heytigo.com\/products\/spring-safety-valve-full-lift-pn16-flanged-dn25-dn100","provider":"HEYTIGO","version":"1.0","type":"link"}