DeZURIK
D10322
Page 16
November 2020
Replacing Packing
(Continued)
Graphoil Dual-Seal Live-Loaded Packing Option (G2LD)
Components are the same as option G2D. In addition, a quantity of new spring washers (A36) is
required as shown in Table A (page 17) for Class 150 valves and in Table B (page 18) for Class 300
valves.
Figure 10
— Packing Option (G2DL)
a.
Follow steps “a” through “e” in G2D section.
b. Place the following components in the configuration shown in Figure 10:
The new gasket (A16)
The secondary packing chamber (A17)
The lantern ring (A18), the two new packing rings (A26), (one ring at a time)
Anti-extrusion washers (A34)
The gland (A12) and the gland nuts (A15) and the new spring washers (A36)
The two flat washers (A37) in the configuration shown in Figure 8 on page 13, with the top
and bottom washers in series and the remaining washers in parallel
—do not tighten the
nuts.
c. Lubricate the threads of the two studs (A14) and the threads and contact faces of the two gland
nuts (A15).
d. Mount the actuator bracket and the secondary packing chamber to the body with the same
screws and tighten the screws as shown in Table C (page 19).
e. Tighten the gland nuts (A15) finger tight, plus ½ turn.
f. Torque the nuts evenly to the value in Table A (page 17) for Class 150 valves, or in Table B
(page 18) for Class 300 valves.
g. Continue with step 10 on page 16.