Directional Control Valves

The directional control valve controls the passage of air signals by generating,
cancelling or redirecting signals.
The valve is described by:
Number of ports or openings (ways): 2-way, 3-way, 4-way, etc.
Number of positions: 2 positions, 3 positions, etc.
Methods of actuation of the valve: manually actuated,mechanically actuated,pneumatically actuated,electrically actuated.
Methods of return actuation: Spring return, air return, etc.



As a signalling element the directional control valve is operated for example,
by a roller lever to detect the piston rod position of a cylinder.



As a processing element the directional control valve redirects or cancels
signals depending on the signal inputs received.



As a control element the directional control valve must deliver the required
quantity of air to match the power component requirements.