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Instruction Manual
D100391X012
EDR and ETR Valves
March 2016
6
Figure 3. Valve Plug Assembly
STEM
DISK SEAT
DISK
VALVE PLUG
CAGE
CASTLE NUT
COTTER PIN
ETR OR EDR
NOTE:
ETR USES A SEAL RING (KEY 24) AND A BACKUP RING (KEY 25) (SEE FIGURE 11).
40A5479‐B
B2360
1
1
CAUTION
Take care when removing the bottom flange (key 31) in the following procedure, to prevent possible product damage from
parts unexpectedly falling out of the valve body.
1. Isolate the control valve from the line pressure, release pressure from both sides of the valve body, and drain the
process media from both sides of the valve. If using a power actuator, also shut off all pressure lines to the power
actuator, release all pressure from the actuator. Use lock‐out procedures to be sure that the above measures stay in
effect while you work on the equipment. When removing the bottom flange (key 31), be careful that the cage and
other parts are not damaged by unexpectedly falling out of the valve body. Remove the nuts (key 16) or cap screws
from the bottom flange.
2. Removing the valve plug from the valve body, the valve plug can be removed independently of the valve stem by
removing the cotter pin and castle nut (keys 30 and 8). Then, slide the valve plug out of the cage (see figure 3).
D
Disconnect the stem connector, and loosen the packing flange nuts (see figure 2).
D
Move the valve stem away from the actuator stem allowing room to remove the indicator disk and stem locknuts.
Remove the parts indicated.
D
Remove the valve plug by pulling the valve plug/stem assembly through the packing and out of the bottom of the
bonnet.
D
If the valve plug is to be re‐used but the stem needs to be replaced, drive the pin (key 8) out of the plug/stem
assembly and unscrew the valve stem.
CAUTION
Take care during disassembly in the following procedure, to prevent possible damage to sealing surfaces.