Emerson EL-O-Matic F Series - Double-Acting Actuators

Installation
4.3.3 Double-Acting Actuators
The operating principle, as explained here, is applicable for actuators with assembly code
CW (direct acting).
• Applying supply pressure to port A will move the pistons outward to the "Open"
position of the valve.
• Applying supply pressure to port B will move the pistons inward to the "Close" posi-
tion of the valve.
• For assembly codes CC, the operating principle is reversed (reverse acting).
Figure 5 Double-Acting Operation
Outward Stroke
A
BA
Inward Stroke
A
B
B
12
September 2017
Installation, Operation and Maintenance Manual
DOC.IOM.EF.EN Rev. 7
Section 4: Installation