{"product_id":"leser-4594-2132-safety-relief-valve-type-459","title":"LESER 4594.2132 Safety Relief Valve (Type 459 Stainless Steel)","description":"\u003cp data-start=\"344\" data-end=\"548\"\u003eThe \u003cstrong data-start=\"348\" data-end=\"387\"\u003eLESER 4594.2132 safety relief valve\u003c\/strong\u003e is part of the \u003cstrong data-start=\"403\" data-end=\"442\"\u003eType 459 Compact Performance series\u003c\/strong\u003e, designed for reliable overpressure protection in industrial systems handling gases, vapors, and liquids.\u003c\/p\u003e\n\u003cp data-start=\"550\" data-end=\"880\"\u003eEngineered for \u003cstrong data-start=\"565\" data-end=\"597\"\u003emedium-capacity applications\u003c\/strong\u003e, this spring-loaded valve provides fast opening response and stable reseating, ensuring safe operation of pressure vessels, pipelines, and process systems. The \u003cstrong data-start=\"758\" data-end=\"812\"\u003e4594 variant features stainless steel construction\u003c\/strong\u003e, offering superior corrosion resistance for demanding environments.\u003c\/p\u003e\n\u003cp data-start=\"882\" data-end=\"1108\"\u003eWith flexible configuration options and compliance with international standards, this valve is widely used across \u003cstrong data-start=\"996\" data-end=\"1067\"\u003echemical processing, oil \u0026amp; gas, energy, and industrial applications\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch1 data-end=\"1134\" data-start=\"1115\" data-section-id=\"npfc0c\"\u003eKey Features\u003c\/h1\u003e\n\u003cul data-end=\"1881\" data-start=\"1135\"\u003e\n\u003cli data-end=\"1242\" data-start=\"1135\" data-section-id=\"14fpn6g\"\u003e\n\u003cstrong data-end=\"1174\" data-start=\"1137\"\u003eSpring-loaded safety relief valve\u003c\/strong\u003e for overpressure protection \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1339\" data-start=\"1243\" data-section-id=\"1ox7awi\"\u003e\n\u003cstrong data-end=\"1263\" data-start=\"1245\"\u003eCompact design\u003c\/strong\u003e with high capacity relative to size \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1458\" data-start=\"1340\" data-section-id=\"qgr7ko\"\u003e\n\u003cstrong data-end=\"1386\" data-start=\"1342\"\u003eStainless steel construction (Type 4594)\u003c\/strong\u003e – enhanced corrosion resistance \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1575\" data-start=\"1459\" data-section-id=\"q8nnx7\"\u003e\n\u003cstrong data-end=\"1505\" data-start=\"1461\"\u003eFast opening with low overpressure (~5%)\u003c\/strong\u003e – precise protection response \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1672\" data-start=\"1576\" data-section-id=\"1982x6i\"\u003e\n\u003cstrong data-end=\"1613\" data-start=\"1578\"\u003eMetal seat or soft seal options\u003c\/strong\u003e for tight shut-off \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1791\" data-start=\"1673\" data-section-id=\"166neaa\"\u003e\n\u003cstrong data-end=\"1709\" data-start=\"1675\"\u003eWide configuration flexibility\u003c\/strong\u003e (connections, materials, pressure ranges) \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1881\" data-start=\"1792\" data-section-id=\"8funzy\"\u003e\n\u003cstrong data-end=\"1841\" data-start=\"1794\"\u003eSuitable for gas, liquid, and steam service\u003c\/strong\u003e \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"2133\" data-start=\"2105\" data-section-id=\"cpzj3d\"\u003ePressure \u0026amp; Temperature\u003c\/h3\u003e\n\u003cul data-end=\"2375\" data-start=\"2134\"\u003e\n\u003cli data-end=\"2241\" data-start=\"2134\" data-section-id=\"1crfksy\"\u003e\n\u003cstrong data-end=\"2159\" data-start=\"2136\"\u003eSet Pressure Range:\u003c\/strong\u003e\n\u003cul data-end=\"2241\" data-start=\"2164\"\u003e\n\u003cli data-end=\"2241\" data-start=\"2164\" data-section-id=\"y4puwn\"\u003e\n\u003cstrong data-end=\"2201\" data-start=\"2166\"\u003e0.2 – 250 bar (2.9 – 3626 psig)\u003c\/strong\u003e \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2375\" data-start=\"2242\" data-section-id=\"jcay1l\"\u003e\n\u003cstrong data-end=\"2270\" data-start=\"2244\"\u003eOperating Temperature:\u003c\/strong\u003e\n\u003cul data-end=\"2375\" data-start=\"2275\"\u003e\n\u003cli data-end=\"2375\" data-start=\"2275\" data-section-id=\"1yhrbpx\"\u003e\n\u003cstrong data-end=\"2297\" data-start=\"2277\"\u003e-273°C to +450°C\u003c\/strong\u003e (depending on standard\/configuration)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"2ayq5\" data-start=\"2382\" data-end=\"2398\"\u003eMechanical\u003c\/h3\u003e\n\u003cul data-start=\"2399\" data-end=\"2790\"\u003e\n\u003cli data-section-id=\"l8vntu\" data-start=\"2399\" data-end=\"2528\"\u003e\n\u003cstrong data-start=\"2401\" data-end=\"2421\"\u003eConnection Size:\u003c\/strong\u003e\n\u003cul data-start=\"2426\" data-end=\"2528\"\u003e\n\u003cli data-section-id=\"begnjz\" data-start=\"2426\" data-end=\"2457\"\u003eThreaded: \u003cstrong data-start=\"2438\" data-end=\"2455\"\u003e1\/2\" – 1 1\/2\"\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1tg3vx8\" data-start=\"2460\" data-end=\"2528\"\u003eFlanged: \u003cstrong data-start=\"2471\" data-end=\"2486\"\u003eDN15 – DN25\u003c\/strong\u003e \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1bjvn8n\" data-start=\"2529\" data-end=\"2611\"\u003e\n\u003cstrong data-start=\"2531\" data-end=\"2557\"\u003eOrifice Diameter (d₀):\u003c\/strong\u003e 9 – 17.5 mm \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"18brnzi\" data-start=\"2612\" data-end=\"2693\"\u003e\n\u003cstrong data-start=\"2614\" data-end=\"2636\"\u003eOrifice Area (A₀):\u003c\/strong\u003e 63.6 – 241 mm² \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1d5ajd9\" data-start=\"2694\" data-end=\"2790\"\u003e\n\u003cstrong data-start=\"2696\" data-end=\"2714\"\u003eFlange Rating:\u003c\/strong\u003e PN 40 – PN 400 \/ Class 150 – 2500\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"APSS Store","offers":[{"title":"Default Title","offer_id":53797085184303,"sku":null,"price":100313000.0,"currency_code":"IDR","in_stock":true}],"url":"https:\/\/estore.apss-id.com\/products\/leser-4594-2132-safety-relief-valve-type-459","provider":"APSS Store","version":"1.0","type":"link"}