11-4
(2) New parts
When assembling or reassembling, for the parts indicated in the table below, be sure to use
new parts.
Table 11-2. Parts requiring treatment
Part name Checkpoints Possible problems
Gland packing (main
packing and adapter
packing)
Carbon ring
• No flaws.
• No coating materials or
dirt stuck to the surface.
Fluid leaks from flawed areas can cause
the total amount of leakage from the
gland to exceed the specified value.
Belleville spring
The total amount of leakage from the
gland may exceed the specified value in
a short period of time because of
insufficient tightening.
(3) Lubricating grease and anti-seizing agent
Have an appropriate amount of the following lubricating grease and anti-seizing agent (or
equivalent) on hand.
Table 11-3. Lubricating grease and anti-seizing agent
Product name Applied area
Gland for PTFE
yarn
Gland for
expanded
graphite
Krytox GPL207
fluoropolymer grease
made by DuPont Co.
Entire surface of the gland
packing (main packing and
adapter packing)
Needed -
Plastilube No. 3 non-
dripping grease,
made by Sulflo Inc.
Entire surface of the
O-rings
Needed Needed
Never-Seez anti-
seizing agent, made
by Bostik Inc.
Threads of the gland studs Needed Needed
Bottom of the gland nuts Needed Needed
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