SMC VH202-02 Manual ValveThe SMC VH202-02 is a manually operated rotary selector valve manufactured by SMC Corporation of Japan. This model belongs to the VH series and features a compact structure, intuitive operation, and high flow capacity. It is commonly used in industrial automation equipment as a manual shut-off or manual switching element for air supply control.
20: 5-port, 2-position (5/2) function; 2: Lever operation
02
Port Size
02: Port size 1/4 (Rc1/4 or NPT1/4)
II. Core Parameters and Performance
Feature
Specification
Remarks
Valve Type
Manual rotary selector valve
Switches airflow direction via lever rotation
Number of Ports
5 ports (5-port)
1 supply port (P), 2 working ports (A, B), 2 exhaust ports (EA, EB)
Control Method
Lever operation
Manual lever rotation for valve position switching
Port Size
1/4 (02)
Typically internal threads Rc1/4 or NPT1/4
Operating Pressure
0.15–1.0 MPa
Standard industrial air supply pressure range
Ambient Temperature
-10 to 60°C
Standard operating ambient temperature range
Operation Angle
90°
Lever rotates 90° to switch valve position
Flow Coefficient
Cv ≈ 0.38
Medium flow capacity, suitable for small to medium flow control
III. Structural Features and Advantages
Lever Direction Indication: The lever design provides clear airflow direction indication, allowing for quick identification and operation.
5-Port, 2-Position Function: Features two operating positions (typically extend and retract positions), suitable for controlling double-acting cylinders.
Compact Design: Small size saves installation space, ideal for use in confined areas.
Simple Operation: Lever operation requires no power supply, offers fast response, and is suitable for manual debugging or emergency shut-off.
IV. Typical Application Scenarios
Equipment Debugging: Used for manually controlling cylinder movements during the debugging phase of automated equipment.
Manual Shut-Off: Serves as a manual shut-off valve for air supply during equipment maintenance or emergency stops.
Manual Switching: Used in systems requiring manual switching of pneumatic circuits.
V. Summary
The SMC VH202-02 is a compact, intuitively operated manual 5-port, 2-position selector valve. Its 90° rotation switching design ensures simple operation, while the lever direction indication makes airflow status easy to identify. This model is highly suitable as a manual control element in automated equipment, playing a particularly important role during equipment debugging and maintenance phases.
