DeZURIK
20.5 – 36" PEC Eccentric Valves
April 2015
Page 9
D10032
Packing Replacement
(continued)
8. Lubricate the new packing, then install it one ring at a time as shown in Figure 3.
Figure 3—Correct Packing Installation Sequence
9. Slide the packing gland down the valve shaft and over the studs.
10. Turn the packing gland nuts onto the studs finger tight plus ½ turn.
Note:
This is a preliminary adjustment, it will be necessary to adjust the packing gland
nuts after the valve is pressurized. See
"Packing Adjustment"
section.
11. Install the actuator as described in the Actuator Instructions.
12. If the actuator is a powered actuator, reconnect power to the actuator.
Replacing Packing Without Removing Actuator
1. This process can be done with or without pressure in the pipeline.
Caustic, toxic, or hot material in the pipeline can cause personal injury or death if
leakage occurs. Confirm that the material is not harmful.
2. Ensure that the material in the pipeline will not cause injury if leakage occurs.
