McMaster-Carr logo
    Filter by
    Air Directional Control Valve Flow Pattern
    Actuation
    Valve Function
    Return Actuation
    System of Measurement
    Inlet Pipe Size
    Industrial Info Snippet
    Actuator Style
    Air Directional Control Valve Type
    Number of Flow Ports
    Mount Type
    Outlet Pipe Size
    Industrial Info Snippet
    For Use With
    Number of Flow Positions
    Maximum Pressure
    Pipe Size
    Industrial Info Snippet
    Actuator Range of Motion
    Inlet Connection
    Maximum Temperature
    Outlet Thread Type
    U.S.–Mexico–Canada Agreement (USMCA) Qualifying
    Industrial Info Snippet
    DFARS Specialty Metals
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    Forward
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Print
    How can we improve?
    Comments
    E-mail address (if you would like a response)
    2 Products
    About Directional Control Valves
    industrial info icon

    Choose the right valve for your application by matching the actions you'll power to our flow diagrams.

    Two-Action Air Directional Control Valves

    Image of Product. Front orientation. Directional Control Valves. Two-Action Air Directional Control Valves , Style C.

    Style C

    Also known as 4-way and 4/2 valves, these valves create two actions, such as extending and then retracting a double-acting cylinder. They direct airflow from the inlet to your equipment and exhaust return airflow to create motion. Valves without an exhaust connection exhaust air to the atmosphere.
    Hand Return—Valves with hand return actuation stay actuated and return to their original position only when you move the actuator again.
    Flow Coefficient (Cv)—Flow coefficient (Cv) indicates how much airflow can pass through a valve.
    Style
    No. of Flow
    Ports
    Inlet
    Size
    Outlet
    Size
    Max. Flow Rate
    @ 100 psi, scfm
    Flow Coefficient
    (Cv)
    Pressure
    Range, psi
    Vacuum
    Rating
    Overall
    Ht.
    Mount
    Type
    Mounting Fasteners
    Included
    Mounting
    Hole Dia.
    Each
    Threaded Female Inlet x Threaded Female Outlet
     
    Hand Return
    C41/8 NPT1/8 NPT7.90.140 to 150Not Rated1 5/8"Screw InNo0.2"6650K80000000
     

    Single-Action Air Directional Control Valves

    Image of Product. Front orientation. Directional Control Valves. Single-Action Air Directional Control Valves, Style A.

    Style A

    Manually control these valves by pushing or turning the actuator. Also known as 3-way or 3/2 valves, they create one action, such as extending a cylinder. They direct airflow from the inlet to your equipment and exhaust return airflow to create motion. In the off position, they exhaust air pressure from the system, allowing equipment to reset so the action can be repeated. Valves without an exhaust connection exhaust air to the atmosphere.
    Threaded Female Inlet x Threaded Female Outlet
    Image of Product. Front orientation. Directional Control Valves. Single-Action Air Directional Control Valves, Style A.

    Style A

    Hand Return—Valves with hand return actuation stay actuated and return to their original position only when you move the actuator again.
    Valve Position—Fail-closed valves block airflow until actuated. Valves that are both fail closed and fail open can be installed to block airflow, or allow air to flow until actuated.
    Flow Coefficient (Cv)—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.
    Style
    No. of Flow
    Ports
    Inlet
    Size
    Outlet
    Size
    Max. Flow Rate
    @ 100 psi, scfm
    Flow Coefficient
    (Cv)
    Pressure
    Range, psi
    Vacuum
    Rating
    Actuator
    Color
    Overall
    Ht.
    Mounting Fasteners
    Included
    Each
    Fail Closed
     
    Hand Return
    A31/8 NPT1/8 NPT7.90.140 to 150Not RatedBlack1 5/8"No6650K70000000
     
    back to top