A21Y Safety Valve, A21Y Spring Micro-Opening High Pressure Safety Valve, A21Y-160 A21Y-320 A21Y-160P A21Y-320P External Thread Hard Alloy Seal High Pressure Gas Tank Relief Valve GB JIS ASME

**A21Y safety valve** is spring micro-opening high pressure safety valve. **A21Y safety valve** adopts external thread connection, no wrench design, Y hard alloy seal, erosion-resistant and wear-resistant, stable sealing under high pressure. A21Y-160 PN160, A21Y-320 PN320, WCB carbon steel body; suffix P of A21Y-160P and A21Y-320P means 304 stainless steel body for corrosive high-pressure medium. **A21Y safety valve** suitable for high-pressure air, nitrogen, petroleum gas and other high-pressure gas, max working temperature ≤200℃. When pressure inside high-pressure tank or gas pipeline exceeds set pressure, A21Y safety valve opens automatically for pressure relief and closes automatically after pressure drop to protect high-pressure pressure equipment. **A21Y safety valve** widely used for high-pressure gas storage tank, chemical high-pressure pipeline, gas separation equipment and high-pressure vessel. A21Y safety valve complies with GB/T12243, GB, JIS, ASME standards, custom A21Y set pressure available.