Published
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.
Revises
ISO 4401:1994
PUBLISHED
ISO 4401:2005
90.93
Standard confirmed
Dec 23, 2022
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