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Instruction Manual
D103799X012
Figure 2. Engage Pin Control Knob Operation
OVERRIDE
ENGAGE
PIN (Key 38)
S28909
Table 7. Handwheel Specifications
OUTPUT THRUST
ACTUATOR
SIZE
N
10 to 12
44482
14 to 18
88964
20 to 26
133447
Maintenance
WARNING
Avoid personal injury from sudden release of process pressure. Before performing any maintenance operations:
D Do not remove the actuator from the valve while the valve is still pressurized.
D Always wear protective gloves, clothing, and eyewear when performing any maintenance operations to avoid personal
injury.
D Disconnect any operating lines providing air pressure, electric power, or a control signal to the actuator. Be sure the
actuator cannot suddenly open or close the valve.
D Use bypass valves or completely shut off the process to isolate the valve from process pressure. Relieve process pressure
on both sides of the valve. Drain the process media from both sides of the valve.
D Use lockout procedures to be sure that the above measures stay in effect while you work on the equipment.
D The valve packing box may contain process fluids that are pressurized, even when the valve has been removed from the
pipeline. Process fluids may spray out under pressure when removing the packing hardware or packing rings, or when
loosening the packing box pipe plug.
D Check with your process or safety engineer for any additional measures that must be taken to protect against process
media.
PULL PIN (TO LOCK OVERRIDE
ENGAGE PIN INTO PLACE)
HANDWHEEL DIAMETER
lbs
mm
10000
305
20000
406
30000
610
DISENGAGED
POSITION
TURNS PER mm
OF TRAVEL
Inch
12
3.8
16
3.0
24
2.8
685SE/685SR Piston Actuator
ENGAGED
POSITION
MAXIMUM RIM FORCE
TURNS PER
REQUIRED
INCH OF
TRAVEL
N
96
290
80
380
72
450
June 2017
ENGAGE PIN
CONTROL
KNOB (Key 33)
lbs
65
85
100
9
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