{"product_id":"pressure-relief-valve-one-and-a-half-inch-cast-iro","title":"Pressure Relief Valve One And A Half Inch Cast Iron 50 PSI Steam for Low Pressure Hot Water Boilers ASME Section IV 0537-G01-HM0050 Thermal Expansion Overpressure Relief","description":"\u003cdiv\u003e1-1\/2in Cast Iron Pressure Relief Valve for Low-Pressure Steam\u003cbr\u003e\n✔️ 50 PSI set, single unit, 1-1\/2in FNPT inlet, 2in FNPT outlet \u003cp\u003eThe Model 537 Safety Relief Valve relieves overpressure in low-pressure hot water boilers and steam systems. It uses a 1-1\/2in FNPT inlet, a 2in FNPT outlet, and a cast iron body suitable for ASME Section IV service. Set at 50 PSI with a temperature range from -20°F to 250°F, it handles liquid or steam relief when thermal expansion occurs or in overfiring conditions.\u003c\/p\u003e ✅ Model 537 safety relief valve for steam and hot water systems\u003cbr\u003e\n✅ Set pressure: 50 PSI\u003cbr\u003e\n✅ Inlet: 1-1\/2in FNPT; Outlet: 2in FNPT\u003cbr\u003e\n✅ Body: Cast Iron A126 Class A\/B\u003cbr\u003e\n✅ ASME Section IV compliant\u003cbr\u003e\n✅ Temperature range: -20°F to 250°F\u003cbr\u003e\n✅ Tested for pressure setting and leakage\u003cbr\u003e \u003cp\u003e💡 What is a pressure relief valve used for in boiler systems and why choose a 50 PSI setting? This safety device vents excess pressure to prevent equipment damage and hazards.\u003cbr\u003e- relief valve function in low-pressure steam and hot water systems\u003cbr\u003e- ASME Section IV compliance and 50 PSI set point\u003cbr\u003e- inlet\/outlet sizing and durable cast iron body\u003cbr\u003e\u003c\/p\u003e✝️\u003c\/div\u003e","brand":"Amazon","offers":[{"title":"Default Title","offer_id":49120452477163,"sku":"VXB01MDLP2IU","price":1133.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/vxb.com\/products\/pressure-relief-valve-one-and-a-half-inch-cast-iro","provider":"VXB Bearings","version":"1.0","type":"link"}