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D3 Valve with easy-Drive Actuator
October 2017
Figure 11. Packing and Belleville Spring Stacking Order
BELLEVILLE SPRINGS FULLY ENCLOSED BY
THE PACKING RETAINER
Valve Plug and Seat Ring Maintenance
Trim Disassembly
Key numbers are referenced in figures 10, 12, and 13.
1. Isolate the control valve from the line pressure, release pressure from both sides of the valve body (key 1), and drain
the process media from both sides of the valve.
CAUTION
The following steps are intended to prevent damage to the valve plug (key 3) and seat ring (key 2) during the removal of the
bonnet and actuator.
For ON/OFF Actuators
2. Command the valve open.
3. Place an open end wrench or a similar obstruction about 6 mm (1/4 inch) thick under the FloPro.
4. Command the valve closed.
For Positioning Actuators
5. Command the valve to anywhere between 10% and 20% travel.
6. Isolate power and signal.
18
UNTIGHTENED,
NOTE THE GAP
PACKING RETAINER
(KEY 8)
VALVE PLUG, BELLEVILLE SPRINGS, AND PACKING RETAINER CORRECTLY
Instruction Manual
INSTALLED AND TIGHTENED
D103460X012
FULLY TIGHTENED,
NO GAP
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