The A40Y spring-loaded full-opening safety valve with radiator is suitable for equipment or pipelines carrying media such as air, water, and nitrogen-ammonia mixtures with operating temperatures ≤400℃ (A40Y-I ≤450℃). The YA40Y-P is suitable for equipment or pipelines carrying corrosive media with operating temperatures ≤300℃, serving as an overpressure protection device.