标准摘要
[中文适用范围]： 本国际标准规定了四通液压换向阀安装表面的尺寸和其他数据，以确保其互换性。 它适用于代表当前实践的四通液压方向控制阀的安装表面。 它们通常适用于工业设备。 [外文原描述]： ISO 4401:2005 specifies the dimensions and other data relating to surfaces on which four-port hydraulic directional control valves are mounted in order to ensure their interchangeability. It applies to mounting surfaces for four-port hydraulic directional control valves which represent current practice. They are generally applicable to industrial equipment.
英文名称Hydraulic fluid power — Four-port directional control valves — Mounting surfaces