Flowserve PSS II Setup guide

Experience In Motion
Repair
Instructions
PSS II
Split Seal

2
These instructions are to be used in conjunction with the PSS II Repair
Kit. The Repair Kit contains replacement seal faces, secondary seals,
Loctite 430 adhesive, and Dow Corning 111 Silicone grease. Other
small parts are shown in Figure 1. The repair should be done in a clean,
well lit area. The tools you will need to do the repair include:
• Suitable solvent and rinse
• Alcohol
• Paper towels and/or swabs
• Single edged razor blade or Exacto style knife
• Common screw driver
• Hex key wrenches
• Paper clip
• Anti-seize thread compound
These instructions require the gluing of elastomers into position with
Loctite 430. As with any cyanoacrylate, extreme care must be used when
handling Loctite 430. See the enclosed Material Safety Data Sheet for
details.
For special problems encountered during the repair procedure,
contact your nearest Flowserve Sales and Service Representative or
Authorized Distributer.
Figure 1
1 Registered Trademark of Loctite Corporation
2 Registered Trademark of Dow Corning Corporation
® 1 ® 2
TM

3
1 Disassemble and Clean
1.1 Remove the cap screws from
the seal drive and gland.
1.2 Remove the rotating and
stationary face halves by
lifting the center of each face
up above their drive or lock
pins and sliding the face
away from the seal drive or
gland.
1.3 Remove the spring
holder by pulling out
the lock pins. See Figure 2.
1.4 Soak the parts in a solvent to remove the secondary seals, adhe-
sive, grease, etc. Suggested solvents include:
•Loctite X-NMS 768
•Acetone
•Trichloroethane (chlorothene)
Note: Follow all Material Safety Data Sheet (MSDS) recommendations
when handling these uids.
1.5 Remove any remaining adhesive by brushing or lightly scraping.
1.6 Wash parts in hot soapy water. Rinse thoroughly in clean water.
Let parts dry.
Caution: Do not sand or bead blast gasket and joint surfaces in the
seal drive and gland to avoid damaging them. Glue, rubber, or heavy
deposits must be carefully scraped off these surfaces before gasketing.
Figure 2
© Copyright 2015 Flowserve Corporation

4
During the assembly process follow these inspection procedures to avoid
errors which may not be correctable later.
2.1 Check Adhesion - Gently tug at the gaskets to be sure they are
properly secured. If they come loose easily, it is likely that the
surfaces were not adequately cleaned or rinsed. Clean the surface
again and reapply adhesive per the instructions. Apply small dots
of adhesive only where specied. Dot size should be 0.040 to
0.080 inch (1.00 to 2.00 mm) in diameter.
2.2 Gasket Length - Be sure that the rotating face gasket, stationary
face seat gasket, and seal drive sleeve gasket are 0.025 to
0.035 inch (0.65 to 0.90 mm) longer than the surfaces where they
end. See Figure 3. If they are not, reposition them accordingly.
Note: All circumferential gaskets are cut to the proper length at the
factory and require no further trimming. The circumferential gaskets will
appear to be too long for the groove. The extra length of the gasket will
be compressed into the groove between the glued points at each joint
during seal assembly.
0.025 - 0.035"
(0.65 to 0.90 mm)
Seal Drive
or Gland
Rotating Face Gasket,
Seat Gasket, or
Sleeve Gasket
Figure 3
0.025 - 0.035"
(0.65 - 0.90 mm)
Split Joint Gasket Groove
2 Ongoing Inspection

2.4 Gland Split
Joint
Gasket
Position
The gland
split joint
gaskets
must be
positioned
as shown in
Figure 5. If
they are not,
Split Joint
Gasket
Gland
Seat Gasket
Gland Gasket
Figure 5
5
2.5 Gasket Chamfers - The seat gasket, rotating face gasket, and
sleeve gasket are all chamfered on one side and must be
positioned as shown in Figure 6.
Figure 6
Rotating Face
Gasket
Chamfer Side
Seal Drive
Sleeve Gasket
Chamfer Side
Gland
Split Joint Gasket
Split
Joint
Gasket
Seat Gasket
Chamfer Side
2.3 Seal Drive Split
Joint Gasket
Position
The split joint
gaskets should be
positioned ush
with the groove
surfaces indicated
in Figure 4. The
gasket end should
be ush to 0.030
inch (0.76 mm)
shorter than the
groove as shown.
Flush
Flush
Flush
Split Joint Gasket
Figure 4
0.030"
0.000"
(0.76 -
0.00 mm)
reposition them as needed.

Figure 10
Figure 7
3 Sleeve Gasket and Rotating Face Gasket
Installation
Figure 8
Figure 9
6
3.1 Wipe the sleeve gasket groove
clean with alcohol.
Caution: Consult material safety data sheets
for proper handling of alcohol.
3.2 Install the sleeve gasket into the
groove. Hold the gasket in the
groove and adjust it so the end
extends 0.025 to 0.035 inch
(0.65 to 0.90 mm) past the seal
drive joint surface. See Figure 7.
3.3 Check the gasket extension with
the 0.030 inch (0.76 mm) thick
"Proud" gauge. See Figure 8.
Note: All circumferential gaskets are
cut to the proper length at the factory
and require no further trimming. The
circumferential gaskets will appear to
be too long for the groove. The extra
length of the gasket is compressed
into the groove between the
glue points.
3.4 Pull back 0.50 inch (12.7 mm) of
the sleeve gasket and use a
paper clip to put two dots of
adhesive in the groove
approximately 0.25 inch (6.35
mm) and 0.50 inch (12.7 mm)
from the seal drive joint surface.
See Figure 9.
3.5 Push the end into the adhesive
and check the gasket extension
with the "Proud" gauge. Hold it
in place for 10 seconds.
See Figure 10.
3.6 Glue the other end of the sleeve
gasket in the groove using the
same procedure.

7
Figure 11
3.7 Repeat these steps for
the rotating face gasket.
3.8 Push the draped middle of
the sleeve gasket and
rotating face gasket into
their grooves. Do not
apply adhesive.
See Figure 11.
Figure 12
Figure 13
Figure 14
3.9 Repeat this procedure for the
other seal drive half.
4 Seal Drive Split Joint
Gasket Installation
4.1 Wipe the seal drive's split joint
gasket groove clean with
alcohol.
Caution: Consult material safety data sheets
for proper handling of alcohol.
4.2 Put one dot of adhesive near the
inner corner. See Figure 12.
4.3 Put one dot of adhesive near the
outer corner. See Figure 13.
4.4 Place the split joint gasket in the
groove and position it as shown
in Figure 4. Hold it in place for
10 seconds. See Figure 14.
4.5 Repeat this procedure for the
other seal drive half.

Figure 15
Figure 16
8
5.1 Place the coil springs in the
spring holes. See Figure 15.
5.2 Set the gland half face down
on the table and insert half of
the spring holder into the gland.
See Figure 16.
5.3 Lubricate one end of the lock
pins and set them into the lock
pin holes in the gland and align
them with the holes in the spring
holder.
5 Spring Holder Installation
Figure 17
5.4 Keep the spring holder snug in
the gland bore and press the
lock pins into the spring holder
until the pins extend 0.06 inch
(1.5 mm) out of the gland. See
Figure 17.
5.5 Repeat this procedure for the other gland half.
0.06" (1.5 mm)

9
Figure 20
Figure 19
Figure 18
6 Seat Gasket Installation
6.1 Wipe the gland seat gasket
groove clean with alcohol.
Caution: Consult material safety data
sheets for proper handling of alcohol.
6.2 Install the seat gasket into the
groove. Hold the seat gasket
in the groove and adjust it so
the end extends 0.025 to 0.035
inch (0.65 to 0.90 mm) past the
gland joint surface.
See Figure 18.
6.3 Check the gasket extension with
the 0.030 inch (0.76 mm)
"Proud" gauge. See Figure 19.
6.4 Pull back 0.50 inch (12.7 mm) of
the seat gasket. Use a paper
clip to put two dots of adhesive
in the groove approximately
0.25 inch (6.35 mm) and 0.50
inch (12.7 mm) from the gland
joint surface. See Figure 20.
6.5 Push the end into the adhesive
and check the gasket extension
with the "Proud" gauge. Hold it
in place for 10 seconds.
See Figure 21.
6.6 Glue the other seat gasket end
into the groove using the same
steps.
6.7 Push the middle of the gasket
into the groove. Do not apply
adhesive.
6.8 Repeat this procedure for the
other gland half. Figure 21

Figure 24
10
Figure 22
7 Gland Gasket Installation
7.1 The gland gasket should be
installed with one dot of
adhesive every 0.50 inch
(12.7 mm) with an extra dot of
adhesive 0.25 inch (6.35 mm)
both sides of the gland joint.
7.2 Coat the cap screws with anti-
seize and assemble the gland
halves. Tighten the cap screws
until the gland joints are metal to
metal.
7.3 Wipe the gland gasket groove
clean with alcohol.
Caution: Consult material safety data
sheets for proper handling of alcohol.
7.4 Apply one dot of adhesive to the
gland gasket groove about 0.25
inch (6.35 mm) from a gland
joint. See Figure 22.
7.5 Center the gland gasket in the
gasket groove and hold it in
place for 10 seconds.
7.6 Apply another dot of adhesive
0.50 inch (12.7 mm from
the rst dot and hold the gland
gasket at that dot for
10 seconds.Repeat this step
every 0.50 inch (12.7mm)
around the groove
circumference. See Figure 23.
7.7 Loosen the cap screws about
1/2 turn. Spread the gland joints
and cut the gland gasket at
these locations. See Figure 24.
Face Gasket Groove
Figure 23