Engineering Fluid Diagrams and Prints
FLUID POWER P&IDs
Rotary actuators are generally called motors and may be fixed or variable. Several of the more
Figure 21 Symbols for Linear Actuators
common rotary symbols are shown in Figure 22. Note the similarity between rotary motor
symbols in Figure 22 and the pump symbols shown in Figure 19. The difference between them
is that the point of the arrow touches the circle in a pump and the tail of the arrow touches the
circle in a motor.