Technology 4 ESO – Unit 7 PNEUMATIC AND HYDRAULIC CIRCUITS page 95 activity 27

a)   In the video we can see a pneumatic system. First the video shows the system drawn realistically, then its diagram.

  • I)  What type of cylinder is it?
  • II)  What valves can you see? What are their functions?
  • III)  What valve has a pedal operator?
  • IV)  Explain how the circuit works.

b)   Using a real example, the video explains how to operate a double acting cylinder using a 5/2 way pneumatic solenoid valve.

  • I)  What are the air chambers? What is their function?
  • II)  What does the valve have at its ends?
  • III)  What is the “manual override”?
  • IV)  What are the “inlet port”, “exhausts” and “outlet ports”?
  • V)  What are the “push-in-fittings”?
  • VI)  What are the “pneumatic mufflers”?
  • VII)  What are the “air supply”?
  • VIII)  How can we control the cylinder remotely?
  • IX)  How can we control the cylinder manually?

c)   What are the differences between the circuit in this video and the circuit in the previous video?