Pneumatic Directional Control Valve Symbol

The iso symbol contains information concerning the stability of the positions and the reset.

Pneumatic directional control valve symbol.

The double arrow in the left box shows that the flow may pass in both directions. The valves shown are all two way two position directional valves. Here is a brief breakdown of how to read a symbol. Directional valves comprise the largest portion of any air logic circuit.

Directional air control valves are the building blocks of pneumatic control. Complete directional valve symbols are created by combining the appropriate actuator and valve symbols found along the horizontal and vertical edges of the chart. The top symbol shows a manually activated valve that is pushed over against a spring. 2 squares 2 positons.

Pneumatic circuit symbols representing these valves provide detailed information about the valve they represent. Symbols identification and other circuit symbols. Pneumatic symbols directional control valves process valves description image description image 2 2 way valve air operated nc angle valve 2 way 2 2 way valve direct operated nc ball valve 2 way 2 2 way valve pilot operated nc ball valve 3 way l 3 2 way valve air operated nc ball valve 3 way t. 5 2 way single pilot pneumatic valve pneumatically actuated in one direction spring return.

Symbols show the methods of actuation the number of positions the flow paths and the number of ports.