Pneumatic fluid power -- Five-port directional control valves -- Part 3: Code system for communication of valve functions
This part specifies the codification system to be used for communication purposes. Defines functions of valve operators used on the various sizes of mounting surfaces complying with the requirements of ISO 5599-1. This codification system is not to be applied directly to the product as is does not describe the many attributes which affect performance interchangeability.
A standard is reviewed every 5 years
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