As a rule, spools move more than poppets. COnversely, the solenoids on piloted valves typically move very little.
Solenoid travel is a function of the construction of the valve, it's purpose, the expected pressures and flows, etc,etc, ad Nausium. If you post an exact model number with date code and revision, someone here might be able to find out for you; but without that information, we can only speak in generalities.
best way is to dissassemble some and measure. . . . or to ask the manufacturer for the data sheet on the various units you have
