ENTC-303 1

Fluid Mechanics LAB:Introduction to Pneumatic

Circuits

Pneumatic Actuator

• Advantages- Air is available in abundance and its free- Leakage of air is less of a problem- Longer life and little maintenance- Air is compressible and it absorbs excessive

force which makes the equipment resistant against damage by shock

2-position spring offset, 3-way valve

Push button actuator

Single acting cylinder

ENTC-303 3

Air pilot actuator Shuttle valve

Flow control valve

4

Mechanically Piloted Valve

ENTC-303 5

2-position 4-way valve

Circuit 1

ENTC-303 6

ENTC-303 7

Circuit 1

ENTC-303 8

Circuit 2 (“AND” logic)

ENTC-303 9

ENTC-303 10

Circuit 2 (“AND” logic)

ENTC-370 11

Circuit 3 (“OR” logic)

ENTC-303 12

ENTC-303 13

Circuit 3 (“OR” logic)

ENTC-303 14

Circuit 4(Automatic Cam Cycling Circuit)

ENTC-303 15

ENTC-303 16

Circuit 4(Automatic Cam Cycling Circuit)

ENTC-303 17