Pneumatic Symbols DRAWING EXERCISE Draw each of the following directional control valves described below. 2-way, 2 position, normally closed, direct acting solenoid valve, spring return 2-way, 2 position, normally open, direct acting solenoid valve, spring return 4-way, 2 position, direct acting solenoid valve, spring return 4-way (5 port), 3 position, closed center, double piloted solenoid, spring centering