DeZURIK
BHP High Performance Butterfly Valves
D10503 Page 12 November 2015
Replacing Packing (Continued)
Carbon Graphite Packing Option (G1)
The new packing (A11) consists of one Graphoil ring and two carbon rings.
Figure 6 — Packing Option (G1)
a. Place the packing in the body, one ring at a time, in the configuration shown in Figure 6 — do
not lubricate.
b. Place the packing washer (A10) into the packing chamber.
c. Install the retaining ring (A46) into the groove in the shaft (A4).
d. Replace the gland (A12) and the two gland nuts (A15).
e. Tighten the nuts finger tight, plus ½ turn.
f. Continue with step 10 on page 16.
Graphoil Packing Option (G2)
The new packing consists of three or more Graphoil rings (A11) between two anti-extrusion washers (A34).
Figure 7 — Packing Option (G2)
a. Lubricate the inside and outside diameters of each new packing ring with Krytox 240 AC
lubricant.
b. Place the new packing and anti-extrusion washers in the body, one ring at a time, in the
configuration shown in Figure 7.
c. Place the packing washer (A10) into the packing chamber.
d. Install the retaining ring (A46) into the groove in the shaft (A4).
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