In industrial automation control systems, the regulating valve serves as the core component for fluid control, undertaking the crucial task of precisely regulating flow, pressure, or temperature. Among them, the Chinese 16C self-operated regulating valve, with its advantages such as no need for external energy, compact structure, and easy maintenance, is widely used in industries such as chemical engineering, power, petroleum, and water treatment. Especially in high-temperature steam systems (such as boiler feed water and steam pipelines), its performance directly affects the system's efficiency and safety. This article will deeply explore the selection points of the Chinese 16C self-operated regulating valve, focusing on the three core elements of pressure rating, material, and compatibility with high-temperature steam. Through professional and detailed explanations, it helps engineers and purchasers make accurate decisions and enhance equipment lifespan and system stability.