
DeZURIK
BHP High Performance Butterfly Valves
November 2015
Page 15
D10503
Replacing Packing
(Continued)
g. Mount the actuator bracket and secondary packing chamber to the body with the same screws
and tighten as shown in Table C (page 19). Tighten the gland nuts (A15) finger tight, plus ½
turn.
h. Continue with step 10 on page 16.
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)
•
Packing washer (A10)
•
Retaining ring (A46)
•
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.