Modular Valves | McMaster-Carr

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Matching Flow Diagrams to Replace an Air Directional Control Valve

Choosing an Air Directional Control Valve

Modular Air Directional Control
Valves with Air Manifolds

Mount valves to a single-station base or to a manifold, which allows a single pressure source for multiple valves, then add or remove valves as your needs change.

Two-Speed Two-Action Electrically Operated
Air Directional Control Valves with Full Shut-Off

These valves close all ports in the off position to stop equipment in a locked position with air pressure holding it in place. Often used to extend and then retract a cylinder at different speeds, they create two actions and have two exhaust ports, which allows you to control the speed of each action by attaching a flow control valve to each exhaust port. Apply voltage to the electrical connection to actuate.

Two-Speed Two-Action Electrically
Operated Air Directional Control Valves

Often used to extend and then retract a cylinder at different speeds, these valves create two actions and have two exhaust ports, which allows you to control the speed of each action by attaching a flow control valve to each exhaust port. Also known as 5/2 valves, they actuate when voltage is applied to the electrical connection.

Two-Speed Two-Action Electrically Operated Air
Directional Control Valves with Exhausting Shut-Off

In the off position, these valves exhaust all air pressure, allowing the equipment to return to the neutral position. Often used to extend and then retract a cylinder at different speeds, they create two actions and have two exhaust ports, which allows you to control the speed of each action by attaching a flow control valve to each exhaust port. Apply voltage to the electrical connection to actuate.

Two-Action Electrically Operated
Air Directional Control Valves

Also known as 4-way and 5/2 valves, these valves create two actions, such as extending and then retracting a double-acting cylinder. Apply voltage to the electrical connection to actuate.

Single-Action Electrically Operated
Air Directional Control Valves

These valves create one action, such as extending a cylinder. Apply voltage to the electrical connection to actuate. They're also known as 3/2 valves.