Emerson Bettis Q Series Installation, Operation And Maintenance Manual page 21

Installation, Operation and Maintenance Manual
DOC.IOM.BQ.E Rev. 3
Figure 10
Inward Stroke
Ps
1.
2.
3.
4.
Optional Controls:
LMC Local Manual Control
SC
Installation
Single-Acting Operation
A-port
Option: Throttle 1
3/2 Spool valve
Option: LMC
Pilot
valve 1
Send control signal "Close" to the Control Module.
Pilot valve 1 will be deactivated and the 3/2 spool valve will vent the central
air chamber
The springs will move the pistons inwards to the "Closed" position.
The Control Module indicates the "Closed" position and activates feedback
signal "Closed".
Speed Control throttles
B-port
Ra
Section 4: Installation
April 2019
17