Matching Flow Diagrams to Replace an Air Directional Control Valve
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Choosing an Air Directional Control Valve
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Single-Action Mechanically Operated Air Directional Control Valves
A simple automation solution that requires no programming, these valves are activated when an object, such as a box rolling on a conveyor, pushes the actuator. Also known as 3-way and 3/2 valves, they create one action, such as extending a cylinder. Valves direct airflow from the inlet to your equipment and exhaust return airflow to create motion. Return actuation is by spring, so they go back to their starting position as soon as the actuator is released. In the off position, they exhaust air pressure from the system, allowing equipment to reset so the action can be repeated.
Valves that are both normally closed and normally open can be installed to block airflow, or allow air to flow until actuated.
Valves with a two-direction actuator are activated by objects from both sides.
Flow coefficient (Cv) is a measurement that indicates how much airflow can pass through a valve. When selecting between valves with the same port size, choose the valve with the higher flow coefficient to ensure it provides enough airflow to operate your system.
For technical drawings and 3-D models, click on a part number.
O'all | For Panel Cutout | |||||||||||||||||
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Actuation Force, lbs. | No. of Flow Ports | Inlet Size | Outlet Size | Exhaust Connection Type | Max. Flow Rate, scfm @ 100 psi | Flow Coefficient (Cv) | Pressure Range, psi | Vacuum Rating, in. of Hg | Lg. | Wd. | Ht. | Dia. | Lg. | Wd. | Mounting Fasteners Included | Each | ||
Two-Direction Actuator | ||||||||||||||||||
N | 2.5 | 3 | 1/8 NPT | 1/8 NPT | Threaded | 6 | 0.11 | 0-120 | 29.9 | 1 3/4" | 3/4" | 1 3/4" | 1/2" | 1 3/4" | 3/4" | Yes | 0000000 | 000000 |