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前言本标准在机械工程标准化委员会指导下制订的。本标准体现了由国际标准化组织(ISO)的ISO/TC131/SC8技术委员会批准的建议草案(ISO/DP6406)。1 范围1.1 本标准叙述了电液伺服阀产品的交收试验和型式(鉴定)试验的试验方法。本标准不包括用于确定有关外部闭路控制系统的性能。1.2本标准主要为无级间电反馈的电液流量控制伺服阀而制订的,但许多条款同样适用于其它形式的伺服阀,例如:压力控制伺服
Foreword This standard was formulated under the guidance of the Commission for Mechanical Engineering Standardization. This standard reflects the draft recommendation (ISO / DP6406) approved by the ISO / TC131 / SC8 Technical Committee of the International Organization for Standardization (ISO). 1 Scope 1.1 This standard describes the electro-hydraulic servo valve product delivery test and type (identification) test method. This standard does not include to determine the performance of the external closed-loop control system. 1.2 This standard is mainly developed for electro-hydraulic flow control servo valves with no level of electrical feedback, but many of the same provisions apply to other types of servo valves, for example: pressure control servo