本SAE标准适用于适用于SAE J1116中引用的自推进作业机械的液压方向控制阀。它描述了一个实验室测试程序，用于评估:a流量与压降b泄漏率c工作效率计量特性与阀芯行程、先导压力或电流泄放阀特性本文件适用于单节和多节液压定向控制阀。本文件说明了轴向手动阀，尽管测试程序适用于其他输入形式，如旋转驱动、电流、液压或气压。 诸如计量滞后或动态响应之类的性能特性可能对其中一些测试产生重大影响。

This SAE Standard applies to hydraulic directional control valves as applied to self-propelled work machines referenced in SAE J1116. It describes a laboratory test procedure for evaluating:aFlow versus pressure dropbLeakage ratecOperating effortdMetering characteristics versus spool travel, pilot pressure, or electrical currenteRelief valve characteristicsThe document applies to single and multiple section hydraulic directional control valves.This document illustrates axial, manually operated valves although the test procedure is applicable to other input forms such as rotary actuation, electric current, hydraulic or pneumatic pressure.Performance characteristics such as metering hysteresis or dynamic response may have a significant effect on some of these tests.