由一机部多路换向阀联合设计组设计的组合式多路换向阀系列已经试验成功,台架试验和主机考核情况良好,并于1977年4月通过了国家鉴定,已经投入小批生产。一、概述该系列多路阀为组合式结构,具有工作压力高、结构紧凑、流道阻力小、微调特性好、通用性强、不易外漏等特点,可用于矿山、工 The combined multi-way directional control valve series designed by the joint design team of multi-way directional control valve of a machine department has been successfully tested. The bench test and main engine test are in good condition. In April 1977, it passed the national appraisal and has been put into small batch produce. I. Overview This series of multi-way valve is a combined structure with high working pressure, compact structure, small flow resistance, fine tuning characteristics, versatility, not easy to leak and so on, can be used in mining, engineering