A44Y-160 A44Y-320 High Pressure Safety Valve, Spring Full Lift Closed Forged Steel Safety Valve With Wrench for Pressure Vessel, Hydrogen & Natural Gas

**A44Y series A44Y-160, A44Y-320 high pressure closed safety valve**, spring loaded full lift closed design, equipped with manual wrench for on-site popping test. Sealing surface hardfaced with stellite alloy, good erosion resistance under high pressure, stable sealing performance. Forged steel body with high mechanical strength for severe high pressure service. PN160, PN320 pressure rating. GB, ASME, DIN, BS, JIS flanges optional. Automatically opens to discharge medium for pressure relief when overpressure, re-seats tightly as pressure drops. Widely used in high-pressure pressure vessels, oil & gas pipelines, hydrogenation equipment and compressed gas storage tanks to protect high-pressure pressure-bearing equipment. Set pressure customized according to working condition.