A "fully ported" valve is any valve that you can physically capture or plumb to all the ports. This does not mean that all the ports are necessarily threaded, but this does mean that the flow path can be captured via a specific method opposed to a vent hole that goes to atmosphere.
Knowledge Base
Valve Actuator Guide
Clippard PB-30 Adapter Installation Instructions
Clippard PB-22 Adapter Installation Instructions
Air Pilot Actuator Selection
Clippard PQ Flow Controls Series
How to Avoid Electrical Hazards with Air Logic
The FV series are #10-32 or 1/8" NPT spool valves which are fully-ported, which means that all ports are usable and can handle pressure or vacuum or both. This series offers Normally-Open, Normally-Closed and Selector/Diverter functions.
3-Way & 4-Way Configurations
Designed for use with Clippard manual air pilot, electrical or mechanical actuators