Basic Pneumatics

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Basic Pneumatics

  1. 1. Basic Pneumatics
  2. 2. Introduction <ul><li>Air has existed since the beginning of time. Man has harnessed the power of the wind to power many devices. Only in the last century has man used air as power transmission medium </li></ul>
  3. 3. Pneumatics System <ul><li>Use air under pressure </li></ul><ul><li>Is a low power system </li></ul><ul><li>Transmitting medium is compressible </li></ul><ul><li>Leaks are clean </li></ul><ul><li>Components are lighter and less expensive </li></ul><ul><li>Air is cheap </li></ul>
  4. 4. Applications of Pneumatic System <ul><li>Industrial robots (Automation) </li></ul><ul><li>Operation of bus doors </li></ul><ul><li>Operation of machine tools </li></ul><ul><li>Operation of work holding devices </li></ul><ul><li>Air tools </li></ul>
  5. 5. Benefits of Compressed Air <ul><li>Explosion proof </li></ul><ul><li>Fast </li></ul><ul><li>Easily transportable </li></ul><ul><li>Easily stored </li></ul><ul><li>Overload safe </li></ul><ul><li>Variable speed </li></ul><ul><li>Variable pressure </li></ul><ul><li>Clean </li></ul><ul><li>Simple construction </li></ul><ul><li>Stroke setting </li></ul><ul><li>No return lines </li></ul><ul><li>Wide operating temperatures </li></ul><ul><li>Others (compact,light,repair) </li></ul>
  6. 6. A Basic Pneumatics System <ul><li>Intake air filter </li></ul><ul><li>Compressor </li></ul><ul><li>After cooler </li></ul><ul><li>Air separator </li></ul><ul><li>Pressure switch </li></ul><ul><li>Safety valve </li></ul><ul><li>Air Receiver </li></ul><ul><li>Air service unit </li></ul><ul><li>Directional valves </li></ul><ul><li>Actuators </li></ul>
  7. 7. Pneumatic components <ul><li>Air filter with water separator </li></ul><ul><li>To filter dirt and moisture from the air line </li></ul>Filter element Drain FILTER
  8. 8. Air Compressor <ul><li>It takes in atmospheric air. </li></ul><ul><li>Compresses the air so as to increase the air pressure. </li></ul><ul><li>Transfers the compressed air into an air receiver. </li></ul>
  9. 9. Pneumatic components <ul><li>Air Service Unit </li></ul><ul><li>Air filter with water separator </li></ul><ul><li>Pressure regulator with pressure gauge </li></ul><ul><li>Oil mist lubricator </li></ul>Simplified representation Detailed representation Pressure regulating valve Lubricator Filter Pressure gauge
  10. 10. Pneumatic components <ul><li>Pressure Regulator </li></ul><ul><ul><li>To reduce the air supply pressure. </li></ul></ul><ul><ul><li>To keep the outlet pressure constant even if the outlet air supply pressure fluctuates. </li></ul></ul><ul><ul><li>Input (Inlet) pressure must be greater than the output pressure. </li></ul></ul>

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