陡坡液体管道有超压和泄漏两个特殊问题。通过对国内外现行处理技术的分析 ,研制了自力式多功能减压阀。该阀不依赖外部能源工作 ,具有自动节流减压、泄漏超流自动截断、禁开、温升膨胀自动卸压和压力自动开启等多项功能。 Steep slope liquid pipe overpressure and leakage of two special problems. Through the analysis of the current treatment technology both at home and abroad, a self-operated multi-functional pressure reducing valve has been developed. The valve does not rely on external energy work, with automatic throttling decompression, leakage super-flow automatic cut off, forbidden to open, the temperature rise automatic pressure relief and pressure automatically open a number of features.