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The A46Y pilot-operated safety relief valve is a novel safety valve structure. Primarily used in the fields of oil and gas, chemical, electric power, metallurgy, and urban gas, it serves as the optimal overpressure protection device on pressurized equipment, containers, or pipelines. Its primary advantage lies in converting the direct action of the spring to an indirect action through a pilot valve, enhancing the sensitivity of operation. Moreover, the main valve adopts a sleeve piston design with a dual-seal valve seat structure, ensuring high operational accuracy, good repeatability, rapid reseating, zero leakage, high backpressure discharge capability, long service life, stable and reliable operation. It can also be adjusted online, and after repeated opening and discharging, it still automatically reseats tightly, offering convenient operation and maintenance.