Standard Grade Technological Studies

Pneumatic components:The T-piece

The T-piece• A T-piece can be used to divide or split

the airflow.• This can be used to operate two

cylinders from a single valve.AIR OUT

AIR IN

AIR OUT

The T-piece• The T-piece can be thought of as a mini

manifold.

• On circuit diagrams the T-piece is represented by a dot. T-piece

Assignment 41. A delivery lorry uses a pneumatic braking system.

The brakes operate when the driver presses the foot brake.Two single-acting cylinders should outstroke at the same time activating the brakes.

Assignment 4• Build and test the circuit shown (use a push button to

simulate the foot brake).

• Describe how the system operates.• Explain the purpose of the T-piece.

Assignment 42. Four single acting cylinders are used to clamp large

nameplates to a table to allow them to be engraved.All four cylinders must operate at the same time.

AIR SUPPLY

Assignment 4• Design a pneumatic system to solve the clamping

problem.• Using the Pneumatics kit, build and test your solution.• Describe how your system operates.• Explain your choice of actuator