Actuator Assembly Codes - Emerson EL-O-Matic F-Series Installation, Operation And Maintenance Manual

Section 4: Installation
September 2017
4.4

Actuator Assembly Codes

Figure 7
Assembly code: CW
= Standard, Clockwise-to-Close rotation
= Fail-to-Close
B
A
pistons position
A = Rotation when central air chamber is pressurized.
B = Rotation when end cap air chambers are pressurized.
All views are from above. Pistons are shown in inward position.
Figure 8
Assembly code: CW
= Standard, Clockwise-to-Close rotation
= Fail-to-Close
B
A
pistons position
14
Assembly Code - Double-Acting
Pinion and
cam position
Dot in
Default
pinion slot
A B
Assembly Code - Spring-Return
Pinion and
cam position
Default Dot in
A B
pinion slot
Installation, Operation and Maintenance Manual
Assembly code: CC
= Reverse, Counterclockwise-to-Open
= Fail-to-Open
A
B
Assembly code: CC
= Reverse, Counterclockwise-to-Open
= Fail-to-Open
A
B
Springs
DOC.IOM.EF.EN Rev. 7
Pinion 90°
rotated
Reversed
pistons position
A B
Pinion 90°
rotated
Reversed
A B
pistons position
Installation