BS ISO 4401:2005

This standard BS ISO 4401:2005 Hydraulic fluid power. Four-port directional control valves. Mounting surfaces is classified in these ICS categories:

• 23.100.50 Control components

This International Standard 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.